Small Arms Review
  • Home
  • Articles
    • Guns & Parts
    • Suppressors
    • Optics & Thermals
    • Ammunition
    • Gear
    • News & Opinion
    • Columns
    • Museums & Factory Tours
    • ID Guides
    • Interviews
    • Event Coverage
    • Articles by Issue
      • Volume 1
        • V1N1 (Oct 1997)
        • V1N2 (Nov 1997)
        • V1N3 (Dec 1997)
        • V1N4 (Jan 1998)
        • V1N5 (Feb 1998)
        • V1N6 (Mar 1998)
        • V1N7 (Apr 1998)
        • V1N8 (May 1998)
        • V1N9 (Jun 1998)
        • V1N10 (Jul 1998)
        • V1N11 (Aug 1998)
        • V1N12 (Sep 1998)
      • Volume 2
        • V2N1 (Oct 1998)
        • V2N2 (Nov 1998)
        • V2N3 (Dec 1998)
        • V2N4 (Jan 1999)
        • V2N5 (Feb 1999)
        • V2N6 (Mar 1999)
        • V2N7 (Apr 1999)
        • V2N8 (May 1999)
        • V2N9 (Jun 1999)
        • V2N10 (Jul 1999)
        • V2N11 (Aug 1999)
        • V2N12 (Sep 1999)
      • Volume 3
        • V3N1 (Oct 1999)
        • V3N2 (Nov 1999)
        • V3N3 (Dec 1999)
        • V3N4 (Jan 2000)
        • V3N5 (Feb 2000)
        • V3N6 (Mar 2000)
        • V3N7 (Apr 2000)
        • V3N8 (May 2000)
        • V3N9 (Jun 2000)
        • V3N10 (Jul 2000)
        • V3N11 (Aug 2000)
        • V3N12 (Sep 2000)
      • Volume 4
        • V4N1 (Oct 2000)
        • V4N2 (Nov 2000)
        • V4N3 (Dec 2000)
        • V4N4 (Jan 2001)
        • V4N5 (Feb 2001)
        • V4N6 (Mar 2001)
        • V4N7 (Apr 2001)
        • V4N8 (May 2001)
        • V4N9 (Jun 2001)
        • V4N10 (Jul 2001)
        • V4N11 (Aug 2001)
        • V4N12 (Sep 2001)
      • Volume 5
        • V5N1 (Oct 2001)
        • V5N2 (Nov 2001)
        • V5N3 (Dec 2001)
        • V5N4 (Jan 2002)
        • V5N5 (Feb 2002)
        • V5N6 (Mar 2002)
        • V5N7 (Apr 2002)
        • V5N8 (May 2002)
        • V5N9 (Jun 2002)
        • V5N10 (Jul 2002)
        • V5N11 (Aug 2002)
        • V5N12 (Sep 2002)
      • Volume 6
        • V6N1 (Oct 2002)
        • V6N2 (Nov 2002)
        • V6N3 (Dec 2002)
        • V6N4 (Jan 2003)
        • V6N5 (Feb 2003)
        • V6N6 (Mar 2003)
        • V6N7 (Apr 2003)
        • V6N8 (May 2003)
        • V6N9 (Jun 2003)
        • V6N10 (Jul 2003)
        • V6N11 (Aug 2003)
        • V6N12 (Sep 2003)
      • Volume 7
        • V7N1 (Oct 2003)
        • V7N2 (Nov 2003)
        • V7N3 (Dec 2003)
        • V7N4 (Jan 2004)
        • V7N5 (Feb 2004)
        • V7N6 (Mar 2004)
        • V7N7 (Apr 2004)
        • V7N8 (May 2004)
        • V7N9 (Jun 2004)
        • V7N10 (Jul 2004)
        • V7N11 (Aug 2004)
        • V7N12 (Sep 2004)
      • Volume 8
        • V8N1 (Oct 2004)
        • V8N2 (Nov 2004)
        • V8N3 (Dec 2004)
        • V8N4 (Jan 2005)
        • V8N5 (Feb 2005)
        • V8N6 (Mar 2005)
        • V8N7 (Apr 2005)
        • V8N8 (May 2005)
        • V8N9 (Jun 2005)
        • V8N10 (Jul 2005)
        • V8N11 (Aug 2005)
        • V8N12 (Sep 2005)
      • Volume 9
        • V9N1 (Oct 2005)
        • V9N2 (Nov 2005)
        • V9N3 (Dec 2005)
        • V9N4 (Jan 2006)
        • V9N5 (Feb 2006)
        • V9N6 (Mar 2006)
        • V9N7 (Apr 2006)
        • V9N8 (May 2006)
        • V9N9 (Jun 2006)
        • V9N10 (Jul 2006)
        • V9N11 (Aug 2006)
        • V9N12 (Sep 2006)
      • Volume 10
        • V10N1 (Oct 2006)
        • V10N2 (Nov 2006)
        • V10N3 (Dec 2006)
        • V10N4 (Jan 2007)
        • V10N5 (Feb 2007)
        • V10N6 (Mar 2007)
        • V10N7 (Apr 2007)
        • V10N8 (May 2007)
        • V10N9 (Jun 2007)
        • V10N10 (Jul 2007)
        • V10N11 (Aug 2007)
        • V10N12 (Sep 2007)
      • Volume 11
        • V11N1 (Oct 2007)
        • V11N2 (Nov 2007)
        • V11N3 (Dec 2007)
        • V11N4 (Jan 2008)
        • V11N5 (Feb 2008)
        • V11N6 (Mar 2008)
        • V11N7 (Apr 2008)
        • V11N8 (May 2008)
        • V11N9 (Jun 2008)
        • V11N10 (Jul 2008)
        • V11N11 (Aug 2008)
        • V11N12 (Sep 2008)
      • Volume 12
        • V12N1 (Oct 2008)
        • V12N2 (Nov 2008)
        • V12N3 (Dec 2008)
        • V12N4 (Jan 2009)
        • V12N5 (Feb 2009)
        • V12N6 (Mar 2009)
        • V12N7 (Apr 2009)
        • V12N8 (May 2009)
        • V12N9 (Jun 2009)
        • V12N10 (Jul 2009)
        • V12N11 (Aug 2009)
        • V12N12 (Sep 2009)
      • Volume 13
        • V13N1 (Oct 2009)
        • V13N2 (Nov 2009)
        • V13N3 (Dec 2009)
        • V13N4 (Jan 2010)
        • V13N5 (Feb 2010)
        • V13N6 (Mar 2010)
        • V13N7 (Apr 2010)
        • V13N8 (May 2010)
        • V13N9 (Jun 2010)
        • V13N10 (Jul 2010)
        • V13N11 (Aug 2010)
        • V13N12 (Sep 2010)
      • Volume 14
        • V14N1 (Oct 2010)
        • V14N2 (Nov 2010)
        • V14N3 (Dec 2010)
          • Ammunition
        • V14N4 (Jan 2011)
        • V14N5 (Feb 2011)
        • V14N6 (Mar 2011)
        • V14N7 (Apr 2011)
        • V14N8 (May 2011)
        • V14N9 (Jun 2011)
        • V14N10 (Jul 2011)
        • V14N11 (Aug 2011)
        • V14N12 (Sep 2011)
      • Volume 15
        • V15N1 (Oct 2011)
        • V15N2 (Nov 2011)
        • V15N4 (Jan 2012)
        • V15N5 (Feb 2012)
      • Volume 16
        • V16N1 (1st Quarter 2012)
        • V16N2 (2nd Quarter 2012)
        • V16N3 (3rd Quarter 2012)
        • V16N4 (4th Quarter 2012)
      • Volume 17
        • V17N1 (1st Quarter 2013)
        • V17N2 (2nd Quarter 2013)
        • V17N3 (3rd Quarter 2013)
        • V17N4 (4th Quarter 2013)
      • Volume 18
        • V18N1 (Jan Feb 2014)
        • V18N2 (Mar Apr 2014)
        • V18N3 (May Jun 2014)
        • V18N4 (Jul Aug 2014)
        • V18N5 (Sep Oct 2014)
        • V18N6 (Nov Dec 2014)
      • Volume 19
        • V19N1 (Jan 2015)
        • V19N2 (Feb Mar 2015)
        • V19N3 (Apr 2015)
        • V19N4 (May 2015)
        • V19N5 (Jun 2015)
        • V19N6 (Jul 2015)
        • V19N7 (Aug Sep 2015)
        • V19N8 (Oct 2015)
        • V19N9 (Nov 2015)
        • V19N10 (Dec 2015)
      • Volume 20
        • V20N1 (Jan 2016)
        • V20N2 (Feb Mar 2016)
        • V20N3 (Apr 2016)
        • V20N4 (May 2016)
        • V20N5 (Jun 2016)
        • V20N6 (Jul 2016)
        • V20N7 (Aug Sep 2016)
        • V20N8 (Oct 2016)
        • V20N9 (Nov 2016)
        • V20N10 (Dec 2016)
      • Volume 21
        • V21N1 (Jan 2017)
        • V21N2 (Feb Mar 2017)
        • V21N3 (Apr 2017)
        • V21N4 (May 2017)
        • V21N5 (Jun 2017)
        • V21N6 (Jul 2017)
        • V21N7 (Aug Sep 2017)
        • V21N8 (Oct 2017)
        • V21N9 (Nov 2017)
        • V21N10 (Dec 2017)
      • Volume 22
        • V22N1 (Jan 2018)
        • V22N2 (Feb 2018)
        • V22N3 (March 2018)
        • V22N4 (Apr 2018)
        • V22N5 (May 2018)
        • V22N6 (Jun Jul 2018)
        • V22N7 (Aug Sep 2018)
        • V22N8 (Oct 2018)
        • V22N9 (Nov 2018)
        • V22N10 (Dec 2018)
      • Volume 23
        • V23N1 (Jan 2019)
        • V23N2 (Feb 2019)
        • V23N3 (Mar 2019)
        • V23N4 (Apr 2019)
        • V23N5 (May 2019)
        • V23N6 (Jun Jul 2019)
        • V23N7 (Aug Sep 2019)
        • V23N8 (Oct 2019)
        • V23N9 (Nov 2019)
        • V23N10 (Dec 2019)
      • Volume 24
        • V24N1 (Jan 2020)
        • V24N2 (Feb 2020)
        • V24N3 (Mar 2020)
        • V24N4 (Apr 2020)
        • V24N5 (May 2020)
        • V24N6 (Jun Jul 2020)
        • V24N7 (Aug Sep 2020)
        • V24N8 (Oct 2020)
        • V24N9 (Nov 2020)
        • V24N10 (Dec 2020)
  • The Archive
    • Search The Archive
  • Store
    • Books
    • Back Issues
    • Merchandise
  • Podcast
  • Newsletter
  • Events
  • FrankenGun Challenge
  • About
    • About Small Arms Review
    • About Chipotle Publishing
    • Contact Us
    • Other Publications
      • Small Arms Defense Journal
  • Home
  • Articles
    • Guns & Parts
    • Suppressors
    • Optics & Thermals
    • Ammunition
    • Gear
    • News & Opinion
    • Columns
    • Museums & Factory Tours
    • ID Guides
    • Interviews
    • Event Coverage
    • Articles by Issue
      • Volume 1
        • V1N1 (Oct 1997)
        • V1N2 (Nov 1997)
        • V1N3 (Dec 1997)
        • V1N4 (Jan 1998)
        • V1N5 (Feb 1998)
        • V1N6 (Mar 1998)
        • V1N7 (Apr 1998)
        • V1N8 (May 1998)
        • V1N9 (Jun 1998)
        • V1N10 (Jul 1998)
        • V1N11 (Aug 1998)
        • V1N12 (Sep 1998)
      • Volume 2
        • V2N1 (Oct 1998)
        • V2N2 (Nov 1998)
        • V2N3 (Dec 1998)
        • V2N4 (Jan 1999)
        • V2N5 (Feb 1999)
        • V2N6 (Mar 1999)
        • V2N7 (Apr 1999)
        • V2N8 (May 1999)
        • V2N9 (Jun 1999)
        • V2N10 (Jul 1999)
        • V2N11 (Aug 1999)
        • V2N12 (Sep 1999)
      • Volume 3
        • V3N1 (Oct 1999)
        • V3N2 (Nov 1999)
        • V3N3 (Dec 1999)
        • V3N4 (Jan 2000)
        • V3N5 (Feb 2000)
        • V3N6 (Mar 2000)
        • V3N7 (Apr 2000)
        • V3N8 (May 2000)
        • V3N9 (Jun 2000)
        • V3N10 (Jul 2000)
        • V3N11 (Aug 2000)
        • V3N12 (Sep 2000)
      • Volume 4
        • V4N1 (Oct 2000)
        • V4N2 (Nov 2000)
        • V4N3 (Dec 2000)
        • V4N4 (Jan 2001)
        • V4N5 (Feb 2001)
        • V4N6 (Mar 2001)
        • V4N7 (Apr 2001)
        • V4N8 (May 2001)
        • V4N9 (Jun 2001)
        • V4N10 (Jul 2001)
        • V4N11 (Aug 2001)
        • V4N12 (Sep 2001)
      • Volume 5
        • V5N1 (Oct 2001)
        • V5N2 (Nov 2001)
        • V5N3 (Dec 2001)
        • V5N4 (Jan 2002)
        • V5N5 (Feb 2002)
        • V5N6 (Mar 2002)
        • V5N7 (Apr 2002)
        • V5N8 (May 2002)
        • V5N9 (Jun 2002)
        • V5N10 (Jul 2002)
        • V5N11 (Aug 2002)
        • V5N12 (Sep 2002)
      • Volume 6
        • V6N1 (Oct 2002)
        • V6N2 (Nov 2002)
        • V6N3 (Dec 2002)
        • V6N4 (Jan 2003)
        • V6N5 (Feb 2003)
        • V6N6 (Mar 2003)
        • V6N7 (Apr 2003)
        • V6N8 (May 2003)
        • V6N9 (Jun 2003)
        • V6N10 (Jul 2003)
        • V6N11 (Aug 2003)
        • V6N12 (Sep 2003)
      • Volume 7
        • V7N1 (Oct 2003)
        • V7N2 (Nov 2003)
        • V7N3 (Dec 2003)
        • V7N4 (Jan 2004)
        • V7N5 (Feb 2004)
        • V7N6 (Mar 2004)
        • V7N7 (Apr 2004)
        • V7N8 (May 2004)
        • V7N9 (Jun 2004)
        • V7N10 (Jul 2004)
        • V7N11 (Aug 2004)
        • V7N12 (Sep 2004)
      • Volume 8
        • V8N1 (Oct 2004)
        • V8N2 (Nov 2004)
        • V8N3 (Dec 2004)
        • V8N4 (Jan 2005)
        • V8N5 (Feb 2005)
        • V8N6 (Mar 2005)
        • V8N7 (Apr 2005)
        • V8N8 (May 2005)
        • V8N9 (Jun 2005)
        • V8N10 (Jul 2005)
        • V8N11 (Aug 2005)
        • V8N12 (Sep 2005)
      • Volume 9
        • V9N1 (Oct 2005)
        • V9N2 (Nov 2005)
        • V9N3 (Dec 2005)
        • V9N4 (Jan 2006)
        • V9N5 (Feb 2006)
        • V9N6 (Mar 2006)
        • V9N7 (Apr 2006)
        • V9N8 (May 2006)
        • V9N9 (Jun 2006)
        • V9N10 (Jul 2006)
        • V9N11 (Aug 2006)
        • V9N12 (Sep 2006)
      • Volume 10
        • V10N1 (Oct 2006)
        • V10N2 (Nov 2006)
        • V10N3 (Dec 2006)
        • V10N4 (Jan 2007)
        • V10N5 (Feb 2007)
        • V10N6 (Mar 2007)
        • V10N7 (Apr 2007)
        • V10N8 (May 2007)
        • V10N9 (Jun 2007)
        • V10N10 (Jul 2007)
        • V10N11 (Aug 2007)
        • V10N12 (Sep 2007)
      • Volume 11
        • V11N1 (Oct 2007)
        • V11N2 (Nov 2007)
        • V11N3 (Dec 2007)
        • V11N4 (Jan 2008)
        • V11N5 (Feb 2008)
        • V11N6 (Mar 2008)
        • V11N7 (Apr 2008)
        • V11N8 (May 2008)
        • V11N9 (Jun 2008)
        • V11N10 (Jul 2008)
        • V11N11 (Aug 2008)
        • V11N12 (Sep 2008)
      • Volume 12
        • V12N1 (Oct 2008)
        • V12N2 (Nov 2008)
        • V12N3 (Dec 2008)
        • V12N4 (Jan 2009)
        • V12N5 (Feb 2009)
        • V12N6 (Mar 2009)
        • V12N7 (Apr 2009)
        • V12N8 (May 2009)
        • V12N9 (Jun 2009)
        • V12N10 (Jul 2009)
        • V12N11 (Aug 2009)
        • V12N12 (Sep 2009)
      • Volume 13
        • V13N1 (Oct 2009)
        • V13N2 (Nov 2009)
        • V13N3 (Dec 2009)
        • V13N4 (Jan 2010)
        • V13N5 (Feb 2010)
        • V13N6 (Mar 2010)
        • V13N7 (Apr 2010)
        • V13N8 (May 2010)
        • V13N9 (Jun 2010)
        • V13N10 (Jul 2010)
        • V13N11 (Aug 2010)
        • V13N12 (Sep 2010)
      • Volume 14
        • V14N1 (Oct 2010)
        • V14N2 (Nov 2010)
        • V14N3 (Dec 2010)
          • Ammunition
        • V14N4 (Jan 2011)
        • V14N5 (Feb 2011)
        • V14N6 (Mar 2011)
        • V14N7 (Apr 2011)
        • V14N8 (May 2011)
        • V14N9 (Jun 2011)
        • V14N10 (Jul 2011)
        • V14N11 (Aug 2011)
        • V14N12 (Sep 2011)
      • Volume 15
        • V15N1 (Oct 2011)
        • V15N2 (Nov 2011)
        • V15N4 (Jan 2012)
        • V15N5 (Feb 2012)
      • Volume 16
        • V16N1 (1st Quarter 2012)
        • V16N2 (2nd Quarter 2012)
        • V16N3 (3rd Quarter 2012)
        • V16N4 (4th Quarter 2012)
      • Volume 17
        • V17N1 (1st Quarter 2013)
        • V17N2 (2nd Quarter 2013)
        • V17N3 (3rd Quarter 2013)
        • V17N4 (4th Quarter 2013)
      • Volume 18
        • V18N1 (Jan Feb 2014)
        • V18N2 (Mar Apr 2014)
        • V18N3 (May Jun 2014)
        • V18N4 (Jul Aug 2014)
        • V18N5 (Sep Oct 2014)
        • V18N6 (Nov Dec 2014)
      • Volume 19
        • V19N1 (Jan 2015)
        • V19N2 (Feb Mar 2015)
        • V19N3 (Apr 2015)
        • V19N4 (May 2015)
        • V19N5 (Jun 2015)
        • V19N6 (Jul 2015)
        • V19N7 (Aug Sep 2015)
        • V19N8 (Oct 2015)
        • V19N9 (Nov 2015)
        • V19N10 (Dec 2015)
      • Volume 20
        • V20N1 (Jan 2016)
        • V20N2 (Feb Mar 2016)
        • V20N3 (Apr 2016)
        • V20N4 (May 2016)
        • V20N5 (Jun 2016)
        • V20N6 (Jul 2016)
        • V20N7 (Aug Sep 2016)
        • V20N8 (Oct 2016)
        • V20N9 (Nov 2016)
        • V20N10 (Dec 2016)
      • Volume 21
        • V21N1 (Jan 2017)
        • V21N2 (Feb Mar 2017)
        • V21N3 (Apr 2017)
        • V21N4 (May 2017)
        • V21N5 (Jun 2017)
        • V21N6 (Jul 2017)
        • V21N7 (Aug Sep 2017)
        • V21N8 (Oct 2017)
        • V21N9 (Nov 2017)
        • V21N10 (Dec 2017)
      • Volume 22
        • V22N1 (Jan 2018)
        • V22N2 (Feb 2018)
        • V22N3 (March 2018)
        • V22N4 (Apr 2018)
        • V22N5 (May 2018)
        • V22N6 (Jun Jul 2018)
        • V22N7 (Aug Sep 2018)
        • V22N8 (Oct 2018)
        • V22N9 (Nov 2018)
        • V22N10 (Dec 2018)
      • Volume 23
        • V23N1 (Jan 2019)
        • V23N2 (Feb 2019)
        • V23N3 (Mar 2019)
        • V23N4 (Apr 2019)
        • V23N5 (May 2019)
        • V23N6 (Jun Jul 2019)
        • V23N7 (Aug Sep 2019)
        • V23N8 (Oct 2019)
        • V23N9 (Nov 2019)
        • V23N10 (Dec 2019)
      • Volume 24
        • V24N1 (Jan 2020)
        • V24N2 (Feb 2020)
        • V24N3 (Mar 2020)
        • V24N4 (Apr 2020)
        • V24N5 (May 2020)
        • V24N6 (Jun Jul 2020)
        • V24N7 (Aug Sep 2020)
        • V24N8 (Oct 2020)
        • V24N9 (Nov 2020)
        • V24N10 (Dec 2020)
  • The Archive
    • Search The Archive
  • Store
    • Books
    • Back Issues
    • Merchandise
  • Podcast
  • Newsletter
  • Events
  • FrankenGun Challenge
  • About
    • About Small Arms Review
    • About Chipotle Publishing
    • Contact Us
    • Other Publications
      • Small Arms Defense Journal
No Result
View All Result
Small Arms Review
No Result
View All Result
Home Articles

RUSSIAN UNDERWATER GUNS

SAR Staff by SAR Staff
August 2, 2022
in Articles, Articles by Issue, Guns & Parts, Search by Issue, V12N2 (Nov 2008), Volume 12
RUSSIAN UNDERWATER GUNS
Share on FacebookShare on Twitter

Diver firing the APS underwater assault rifle from the kneeling position with the shoulder stock extended. Note the ejected MPS cartridge case just above the ejection port and the empty ejected MPS cartridge cases and the empty magazine on the sea floor.

By Robert G. Segel

Many of us remember the finale in the 1965 movie Thunderball when James Bond and his allies battle Emilio Largo, the evil Number Two of SPECTRE (SPecial Executive for Counter-intelligence, Terrorism, Revenge and Extortion), and his cohorts, in the massive underwater battle scene where the main battle implements were knives and elastic powered or compressed gas spear guns. Though that book, film and battle was fictitious, war beneath the waves is not.

The Russian company Tsniitochmash, the Central Scientific Research Institute of Precise Mechanical Engineering, located in the Moscow Region, has produced two firearms for the underwater warrior: the 4.5mm SPP-1M underwater pistol and the 5.66mm APS underwater assault rifle.

Surprisingly, these are not new weapons as they were developed and put in Russian service over thirty years ago. They are excellent examples of the secrecy that surrounded the Soviet Union and were unknown, even at classified levels, in the West until Tsniitochmash began offering them publicly in 1993.

4.5mm SPP-1M Underwater Pistol

Developed in the late 1960s at the request of the Soviet Navy and accepted in 1971, the 4.5mm SPP-1 (Spetsialnyi Podvodnyi Pistolet – Special Underwater Pistol) was designed to arm combat divers (frogmen). Later, the SPP-1 was upgraded to the SPP-1M that was basically the same pistol but had an extra spring above the sear to improve trigger pull and had a larger trigger guard to accommodate the use of diving gloves. It is still in use by Russian Navy Special Forces.

Four SPS cartridges for the SPP-1M underwater pistol are held together in their proper loading position by a clip that can be seen at the cartridge bases.

The SPP-1M underwater pistol is a manually operated handgun that consists of four smoothbore barrels grouped in a square cluster. The barrel cluster is hinged to the frame just in front of the trigger guard and breaks open in a similar fashion as a break-open shotgun. There is a single striker (firing pin) and the double action firing mechanism fires one cartridge sequentially each time the trigger is pulled. The striker is mounted on a rotating base and with each pull of the trigger the striker is cocked and simultaneously rotated to the next, unfired barrel.

The SPP-1M underwater pistol shown with its specialized SPS 4.5mm cartridge and the metal quiver ammunition holder that holds a preloaded cluster of four rounds.

The pistol uses a proprietary 4.5mm SPS pistol cartridge that has high penetrating power by replacing the typical bullet with a metal dart. Underwater, conventional bullets are highly ineffective being inaccurate and limited to a very short range with a rapidly decreasing lethality. The “bullet” has been replaced with a long 115mm (4.53 inches) dart weighing 12.8 grams (.452 oz.) made from mild steel that has a slightly flattened tip. The fired projectile is kept stabilized by using a hydrodynamic cavity that is generated by the flattened point of the projectile that results in reduced drag, increased accuracy and lethality. The dart has a longer range and more penetrating power than speargun spears. The cartridge is a rimmed bottleneck case 40mm (1.575 in.) long and sealed against water. The complete cartridge is 145mm (5.71 in.) long and weighs 17.5 grams (.617 oz.).

The pistol is loaded with four cartridges at a time that are held together as a group by a clip in the same square arrangement as the barrels. The pistol is broken open and the clip containing the four SPS cartridges are inserted into their respective chambers. The action is closed and the pistol is ready to fire. There is a single lever with three position options located on the left side of the frame at the top of the pistol grip, just behind the trigger, that controls the operation of the pistol. The top position is for “Reloading” (barrel release), the middle position is “Safe” and the bottom position is “Fire.”

The pistol can be fired out of the water in the air environment. Due to the pistol being smoothbore and firing a dart, the projectile is not stabilized at all and accuracy is greatly affected with an effective lethality range of 15-20 meters. In an emergency, at very close range, it is still highly effective.

Range and lethality underwater changes the deeper the diver goes. Depth reduces the range because the deeper one goes there is more water pressure that closes the hydrodynamic cavity sooner. Once the projectile is no longer supercavitating, the hydrodynamic drag increases greatly resulting in the projectile becoming unstable. The manufacturer claims that at a depth of 5 meters (16.4 ft.), the lethality range is 17 meters (55.17 ft.); at a depth of 20 meters (65.62 ft.), the lethality range is 11 meters (36.09 ft.) and at a depth of 40 meters (131.23 ft.), the lethality range is 6 meters (19.69 ft.). Its stated lethal range is the range from which it can easily penetrate a padded underwater Prolon diving suit (flexible polyurethane padding) or a 5mm thick organic glass face mask.

The SPP-1M underwater pistol can be fired in the atmosphere or under water in its intended environment. However, if fired in the atmosphere, the projectile is not stabilized and the effective accurate lethal range is only about 15 meters. (Russian training film)

The SPP-1M underwater pistol comes complete in a metal storage case that includes the pistol, ten cartridge clips, a holster that can attach to a diver’s belt, a device for loading the SPS cartridges into the clips, a special sling to carry the pistol and three combat ready metal quivers that each hold a set of four loaded SPS cartridges in their clips that the diver can attach to his dive belt. Thus, the combat load is four rounds in the gun and twelve at the ready.

The SPP-1M breaks open like a shotgun to facilitate the loading of its four chambers.

5.66mm APS Underwater Assault Rifle

The Tsniitochmash 5.66mm APS (Avtomat Podvodnyi Spetsialnyi – Special Underwater Assault Rifle) was produced at the requirement from the Soviet military to provide the underwater warrior with greater firepower and extended range than that of conventional underwater weapons and the SPP-1M underwater pistol. Developed in the early 1970s, the APS was designed by a team headed by Vladimir Simonov, the nephew of Sergei Simonov, who designed the SKS carbine.

Left side of the APS underwater assault rifle shown with the stock retracted and a number of its MPS specialized 5.66mm cartridges.

As the basis of their design work, the designers began with the Kalashnikov rifle but discovered that although the AK would work under water, the bullets had virtually no effective range and was grossly inaccurate. Back at the drawing boards, the designers came up with the APS design relying heavily on the lessons learned during the development of the SPP-1M underwater pistol.

The APS underwater assault rifle is smoothbore like the SPP-1M pistol firing a 120mm (4.72 in.) long 5.66mm dart projectile with a length-to-diameter ratio of approximately 21 to 1. The MPS cartridge uses a standard 5.45×39 case sealed against water. Using the same basic technology of the pistol, the long, thin projectiles are stabilized by water flowing along the sides and supercavitation to provide stability during travel rather than by spinning.

The rifle is gas operated and features a patented self-adjusting gas valve that allows the gun to be fired both under water and in atmosphere. This self-adjusting gas valve was necessary because the energy required to operate the moving parts, particularly the bolt and operating rod, constantly change as the diver goes deeper and the water becomes more dense restricting the movement of the moving parts. The rifle is select fire for both single shot and full automatic with a single fire control selector switch on the rear of the left side of the receiver just above the pistol grip. The fire control selector switch has three positions: forward for single shot, up for full automatic fire, and back for safety. The rate of fire in full automatic is 600 rounds per minute in atmosphere but slows progressively as the gun goes deeper under water with the actual rate of fire depending upon the depth. Information on the cyclic rate of fire at different depths was not available. “Sources” note that while the APS can fire in atmosphere, the projectile does not effectively stabilize in the air, so its lethal range out of water is less than 100 meters and accuracy at that range is highly questionable – more than likely accurate out to about 50 meters. Additionally, the expected service life of the APS when fired in atmosphere degrades severely. Thus, it should be fired in atmosphere only in an emergency. It was designed for underwater use, and it that environment, it is quite effective.

The fire control selector switch can be seen above the pistol grip (forward for single shot, up for full automatic fire, and back for safety) and the magazine release lever is located directly in front of the trigger guard. The rear sight is a simple open notch and the distinctive box magazine is made of polymer.

The sights of the rifle are rather crude with a non-adjustable open notch rear sight and a post front sight. The rifle has a retractable shoulder stock made from steel wire that employs in a fashion similar to the US M3 Greasegun.

The APS fires from an open bolt to allow the barrel to continually be filled with water, which is necessary for its reliable operation because of the type of projectile it fires. The cocking handle and ejection port are both on the right side of the receiver. The rifle feeds from a detachable polymer box magazine holding 26 rounds. The shape of the box magazine is quite distinctive in that it is unusually deep (front to back) to accommodate the unusual shape of the MPS cartridge. While the gun is relatively simple overall, the most complicated thing is the feed system where several parts had to be designed and installed to prevent double and even triple feed due to the extremely long projectiles. The magazine release switch is located in front of the trigger guard and just behind the magazine.

Accessories for the APS underwater assault rifle include a canvas carrying case and a spare magazine pouch to wear on the diver’s belt.

This Russian frogman is equipped with both the APS underwater assault rifle and the SSP-1M underwater pistol. Note on the diver’s left side he has the three metal quivers containing four-rounds each for the SSP-1M pistol as well as the pistol holster on his belt. On the diver’s right side, he carries a spare magazine pouch on his belt for the APS rifle. The total combat load for this diver is 16 rounds for the SSP-1M underwater pistol and 52 rounds for the APS underwater assault rifle. (Russian training film)

The Russian government has publicly acknowledged only one instance of operational deployment. In November 1989 at Malta, President George Bush and Russian Premier Mikail Gorbachev had meetings aboard a ship and the flotilla on which these two heads of state met were protected by a 16-man team of divers armed with the APS underwater assault rifle.

The rifle has been in active service with the Soviet and Russian special operations units for many years. Tsniitochmash has been actively marketing the weapon since the 1990s and it is not known how many APS rifles have been sold on the international arms market to Western users, but it can be safely assumed that the rifle is in service outside Russia.

In today’s Global War on Terror, the threat is no longer just on land, on the sea and in the air. Underwater threats to ships, ports, harbors, rivers, estuaries, offshore drilling operations and pipelines are just some of the targets that can no longer be ignored and are vulnerable to underwater attack. The APS underwater assault rifle, and its little brother the SPP-1M underwater pistol, are clearly designed to meet these threats with use by special forces units, specialized law enforcement tactical teams and industrial security personnel – and they meet them quite well.

Loading the SPP-1M underwater pistol is easy. Simply open the action and place the cluster of four pre-loaded SPS cartridges in their respective chambers, close the action, and the pistol is ready to fire. (Russian training film)

Because the guns are manufactured in Russia, they are not importable to the US and Small Arms Review has not been able to evaluate or test fire either of the guns. Thus, accuracy, method of operation, rate of fire and dependability are yet to be confirmed. We are working on getting an operational test report of these weapons from one of our overseas correspondents.

5.66mm APS Underwater Assault Rifle

Type:  Underwater assault rifle
Origin:  Russia
Caliber:  5.66mm MPS
Weight, loaded:  3.4 kg (7.5 lbs.)
Operation:   Semi or full auto
Overall dimensions
  With stock retracted:  614 x 65 x 187 mm (24.17 x 2.56 x 7.36 in.)
  With stock extended:  840 x 65 x 187 mm (33.07 x 2.56 x 7.36 in.)
Magazine capacity:  26 rounds
Effective range:
  5 m (16.4 ft) depth:  30 m (98.43 ft)
  20 m (65.62 ft) depth:  20 m (65.62 ft)
  40 m (131.23 ft) depth:  11 m (36.09 ft)
Manufacturer:  Tsniitochmash

4.5mm SPP-1M Underwater Pistol

Type:  Underwater pistol
Origin:  Russia
Caliber:  4.5mm SPS
Weight:  0.95 kg (2.09 lbs)
Overall dimensions:  244 x 37 x 136 mm (9.61 x 1.46 x 5.35 in)
Pistol capacity:  4 rounds
Effective range:
  5 m (16.4 ft) depth:  17 m (55.77 ft)
  20 m (65.62 ft) depth:  11 m (36.09 ft)
  40 m (131.23 ft) depth:  6 m (19.69 ft)
Manufacturer:  Tsniitochmash

This article first appeared in Small Arms Review V12N2 (November 2008)

Author

  • SAR Staff
    SAR Staff

    View all posts

Tags: 2008APSAvtomat Podvodnyi Spetsialnyi - Special Underwater Assault RifleRobert G. SegelSpetsialnyi Podvodnyi Pistolet - Special Underwater PistolSPP-1MUnderwater PistolV12N2
Previous Post

THE LIFE AND TIMES OF BURTON “BOB” BRENNER: PART I

Next Post

75TH RANGER ELEMENT IN ACTION

Next Post
75TH RANGER ELEMENT IN ACTION

75TH RANGER ELEMENT IN ACTION

TRENDING STORIES

  • U.S. NAVY MK18 MOD O CUSTOM CLOSE QUARTER COMBAT WEAPON FOR THE SEAFARING SERVICE

    U.S. NAVY MK18 MOD O CUSTOM CLOSE QUARTER COMBAT WEAPON FOR THE SEAFARING SERVICE

    0 shares
    Share 0 Tweet 0
  • Recreational Use Of 40MM Grenade Launchers

    0 shares
    Share 0 Tweet 0
  • Customizing the Already Custom SIG P320 Spectre Comp

    0 shares
    Share 0 Tweet 0
  • Col. Rex Applegate: The Knife Designs of a Close-Combat Legend

    0 shares
    Share 0 Tweet 0
  • Firearm Review: Pioneer Arms Classic AK in 7.62×39

    0 shares
    Share 0 Tweet 0
  • Trending
  • Comments
  • Latest
U.S. NAVY MK18 MOD O CUSTOM CLOSE QUARTER COMBAT WEAPON FOR THE SEAFARING SERVICE

U.S. NAVY MK18 MOD O CUSTOM CLOSE QUARTER COMBAT WEAPON FOR THE SEAFARING SERVICE

Recreational Use Of 40MM Grenade Launchers

Recreational Use Of 40MM Grenade Launchers

SIG Spectre Comp with AXG Grip Module

Customizing the Already Custom SIG P320 Spectre Comp

Col. Rex Applegate: The Knife Designs of a Close-Combat Legend

Col. Rex Applegate: The Knife Designs of a Close-Combat Legend

New Review: V19N1

New Review: V23N3

SAR|Special

SAR|Special

The Grand Power Q100

The Grand Power Q100

A Fading Star: The star S135 Submachine Gun, That is

A Fading Star: The star S135 Submachine Gun, That is

The Luger Rifle

Where in the world is the Luger rifle?

Book Reviews: September 2016

BOOK REVIEW: Two Great MP40 Books 

Henk Visser Interview: SAR Talks Stoners, CETME, HK with One of the Founders of the Modern Small Arms Industry

Henk Visser Interview: SAR Talks Stoners, CETME, HK with One of the Founders of the Modern Small Arms Industry

The SCCY DVG-1—The Changer of Games

The SCCY DVG-1—The Changer of Games

QUICK LINKS

  • About Chipotle Publishing
  • About Small Arms Review
  • Advertise with Us
  • Write for Us

CONTACT DETAILS

  • Phone: +1 (702) 565-0746
  • E-mail: office@smallarmsreview.com
  • Web: www.chipotlepublishing.com
  • Chipotle Publishing, LLC 631 N. Stephanie St., No. 282, Henderson, NV 89014
Small Arms Review

FOLLOW US

  • Privacy Policy
  • Disclaimer

© 2022 Chipotle Publishing | All Rights Reserved

No Result
View All Result
  • Home
  • Articles
    • Guns & Parts
    • Suppressors
    • Optics & Thermals
    • Ammunition
    • Gear
    • News & Opinion
    • Columns
    • Museums & Factory Tours
    • ID Guides
    • Interviews
    • Event Coverage
    • Articles by Issue
      • Volume 1
      • Volume 2
      • Volume 3
      • Volume 4
      • Volume 5
      • Volume 6
      • Volume 7
      • Volume 8
      • Volume 9
      • Volume 10
      • Volume 11
      • Volume 12
      • Volume 13
      • Volume 14
      • Volume 15
      • Volume 16
      • Volume 17
      • Volume 18
      • Volume 19
      • Volume 20
      • Volume 21
      • Volume 22
      • Volume 23
      • Volume 24
  • The Archive
    • Search The Archive
  • Store
    • Books
    • Back Issues
    • Merchandise
  • Podcast
  • Newsletter
  • Events
  • FrankenGun Challenge
  • About
    • About Small Arms Review
    • About Chipotle Publishing
    • Contact Us
    • Other Publications
      • Small Arms Defense Journal

© 2022 Chipotle Publishing | All Rights Reserved

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In

Add New Playlist

This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.

Subscribe To Our Weekly Newsletter

Are you in the know?
Stay up to date with the latest articles.

Facebook-f Linkedin Instagram

Redirecting to External Website

You are leaving the Small Arms Review website and will be redirected to an external link in a 5 Seconds.
VISIT NOW!