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
  • Events
  • 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
  • Events
  • 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

Double Your Fun, Legal and Affordable Title I Fun: The Twin MG-42/22

by William D. Ehringer
September 1, 1998
in Articles, Articles by Issue, Guns & Parts, V1N12 (Sep 1998), Volume 1
Double Your Fun, Legal and Affordable Title I Fun: The Twin MG-42/22
Share on FacebookShare on Twitter

By William D. Ehringer

The private ownership of a machine gun is, in many cases, denied to some citizens in the United States because of where they live or the inability to acquire the all-important chief law enforcement officer’s signature that is required on a Form 4. However, while the firearms enthusiast may be relegated to owning Title I weapons, it does not necessarily imply that he or she cannot own a firearm that fires at the cyclic rate of a machine gun. In fact, many legal “gadgets” have been made in attempt to allow Title I owners the opportunity to “feel” full-auto fire. These include such devices as the “HellFire Trigger”, “Tri-Burst”, “HellStorm 2000”, and the “BMF Activator”. While it is true that these devices do allow the Title I owner to simulate the cyclic rate of a machine gun, the firing of the gun usually compromises the ability to aim the weapon at the target.

Imagine if you could use one of these trigger devices to fire a Title I weapon with the accuracy of its full-auto cousin, and achieve cyclic rates that surpassed the rate of fire of the infamous SWD M11/9 bullet hose! Now imagine if you could do this without having to fill out a Form 4, acquire a CLEO signature, or pay for a $200 tax stamp. Furthermore, imagine that such a gun was legal in all 50 States and did not cost an arm and a leg to shoot! The Twin MG-42 is just such a beast, and for under $900 you can make one for yourself.

Twin MG-42/22

Making a Twin MG-42:

The first thing I did was to select a firearm platform that was readily available, inexpensive to shoot, and easily modified. The Ruger 10/22 is the perfect candidate for this metamorphosis. The first part of the metamorphosis is to rid the gun of the “ugly” wood furniture and replace it with a beautiful “evil looking, black assault style stock.” I selected the MG-42 replica stock, which is available from Frank’s Center. The completed gun is a 2/3rds scale replica of the original German World War II gun, and consists of two components: A rear buttstock/receiver and a forward barrel shroud. Because the kit does not alter the number of “assault rifle features of the gun”, the use of this kit on any Ruger 10/22 (pre or post-1994 ban) is legal.

The first thing to do is to make the flimsy replica stock more rigid. This process entailed cutting a piece of 1/8” x 1” metal strap to the inside length of the front barrel shroud and connecting the two guns together. The metal strap was mounted with 8/32 machine screws (3/4” long) to the forend by utilizing the pre-drilled holes in the underside of the stock. A similar process was repeated on another MG-42 stock. On the underside of the forend, two pieces of 1/8” x 1” x 1’ metal strap were then used to connect (using the remaining 1/4” of the 8/32 machine screws that protrude from the underside of the stock) the 10/22s together at the holes nearest to the flash hider, and also at the point where the forend bolts to the Ruger 10/22 receiver. Two additional 6” pieces of strap were then cut at 45° angle on both ends, and one end was attached to one of the 8/32” machine screws. The opposite end of this strap overlapped at the point where the rearward most connecting straps joins the two guns. The finished product is two MG-42 replica guns mounted together in a very rigid manner.

I made my own spider-sight by taking a piece of 3” PVC pipe and a piece of 11/2” PVC pipe and cutting a 1/4” section from each. The two pieces were then connected together using thin steel rod (bicycle spokes work great) with a two-part epoxy. The spider sight was attached to a piece of 1/4” aluminum rod that was tapped on one end (8/32). The sight was then attached to the Twin MG-42 at the most distant connecting strap.

The next step in the metamorphosis was to link both triggers together. However, one of my desires was to have the guns fire in an asynchronous (90° out) manner. I also wanted them to be able to achieve the high cyclic rate that might be expected from a full-auto weapon. I based my design on the proven Calico 20/22 firearm which uses two Ruger 10/22s and a two-lobed cam mounted to each trigger. My modification to this design was to use the commercially available BMF Activator (Frank’s Center). The BMF Activator is threaded on both ends of the cam, allowing for either the attachment of the hand crank or the attachment of additional activators. The BMF Activator consists of three parts: A hand operated crank, a four-lobed cam housed in high impact plastic (that attaches to the Ruger 10/22’s trigger guard) and an activator bar. The obvious improvement in my design is that each revolution of the crank results in 8 shots being fired from the Twin MG-42 compared to the 4 shots by the 20/22.

To achieve the desired 90° out-of-phase firing of the two weapons, I took two BMF Activators (Activator #1 and Activator #2) and placed them flat on the workbench and turned the cam until Activator #1 had the activator bar at top dead center. Activator #2 was then turned until its activator bar was at bottom dead center. A 12” piece of 1/4” rod was then turned down 1/2” on each end so that the rod fit snug into the activators threaded hole. A 3/32” hole was then drilled through the activator and the rod, and a small cotter pin was then inserted. The other activator was drilled and fitted with a cotter pin in a similar manner. The result was two asynchronous BMF activators attached by the interconnecting rod.

The BMF Activator is supplied with two types of bolts. One is a plastic bolt while the other is a metal bolt. I attached the two activators to the Twin MG-42 by tapping the Ruger 10/22 trigger guard (8/32) and mounting the two activators to the trigger guards. Care should be taken when mounting the twin Activators to the trigger guards, as sufficient distance must be left between the Activator bar and the 10/22 trigger. Equally important is the correct alignment of the Activators, such that they are directly across from one another. Once attached to the 10/22 trigger guards, the dual Activator system should be tested to ensure reliability and ease of movement.

The final step in the process was to attach the guns to a stable platform. I chose the M2 Tripod (Sarco, Inc) because of its proven stability and moderate cost. To attach the guns to the M2 tripod, I took a piece of 3” aluminum rod and turned one end of the rod down to create a pintle that matched the pintle socket of the M2 tripod. The opposite end of the pintle was then drilled and tapped 1/2” x 2”. Recall that the Twin MG-42 was joined at the point were the two forends attach to the 10/22 receiver. A 9/16” hole was drilled through the three pieces of metal strap, and a 1/2” x 2 1/2” bolt was used to attach the Twin MG-42 to the tripod/pintle.

Firing The Twin MG-42:

The author’s son firing the Twin MG-42. In as little as 4 seconds, two 50 round magazines can be completely emptied with surprising accuracy.

My son really enjoys shooting the Twin MG-42, and can empty the two 50 round mags in around 4 seconds. I use two types of mags in the Twin MG-42: Ramline 50 round mags and Italian single-stack mags with the Ruger 10/22 adapters (Franks Center). The use of the Ramline mags is preferred by this writer, because they can be easily re-loaded using the Ramline Auto-Loader (Natchez Shooters Supply). I also installed the extended magazine releases made by Butler Creek, which really aid in removing the magazines. The Twin MG-42 will reliably function using Winchester Super-X 40gr Lubaloy rounds. However, other high velocity rounds such as CCI Mini-Mags or Federal Classic will also function in the guns. Clearly, the use of high-powered ammunition avoids the occasional jam that typically occurs if less powerful rounds are used.

Hand-made spider sight assembly for the Twin MG-42. The outside rings were made by cutting two 1/4” pieces of PVC and the inside “web” made with 1/8” aluminum rod.

The Twin MG-42 maximum cyclic rate was determined to be 1505 rpm on average. Of course the cyclic rate of this gun depends upon the operator. If one desires a slower cyclic rate, the crank is turned slower. However, one must avoid the tendency of turning the crank too fast, as this will result in misfires. The finite cyclic rate of the 10/22 is discussed in greater detail in a back issue of MGN (Volume 9 Number2). Once the operator has become familiarized with shooting the Twin MG-42, fairly decent accuracy can be achieved. As an example, I taped 50 orange colored clay pigeons to an old door (Figure 9). With two 50 round mags, I was able to shoot nearly all fifty targets from 50 yards away. The ability to aim the gun is significantly increased if one uses .22LR Tracer (Outland Sales). I load the tracer 1 in 4 and this really helps initial target acquisition.

One thing that always holds true when shooting the Twin MG-42 is that you can expect a crowd at the range. I have taken this gun to the range several times with my Colt M16A1 Carbine, and a majority of the onlookers are more interested in the Twin MG-42 than the real Title II weapon. The most frequently asked question is, “Is that a real MG-42?” or “Is that a machine gun?” The answer to both of these questions is NO. The true beauty of the Twin MG-42 is that it is not a Class III weapon, because the triggers are being actuated by a cranking mechanism and not an electric motor. The Twin MG-42 is legal in all 50 states and can be made and owned by anyone over 18 years of age.

The Cost Factor:

One of the goals of the Twin MG-42 project was to build a gun that costs less than a Title II firearm. The two Ruger 10/22s cost $270, the two MG-42 Replica Stocks cost $180, the two BMF Activators cost $40, and the M2 tripod was $250. The pintle, the linkage for the BMF Activators, the connecting straps, and the front spider sight were hand-made, and probably could be duplicated by a machinist for less than $100. Thus, for around $850 you can easily duplicate this project. This is less than the cost of owning even the cheapest Class 3 weapon (SWD M11/9) which after dealer costs and Tax Stamp will run you around $900.

BMF activator with connecting rod. Note that the threaded portion of the activator opposite of the crank was pinned to help strengthen the unit.

The Twin MG-42 has exceeded all of my original expectations. The gun has a high cyclic rate, is fairly accurate, is cheap to shoot, and is a real crowd pleaser. The only detractor to owning a Twin MG-42 is that it takes 4 minutes to load the two 50 round magazines and 4 seconds to empty them. The one thing that the Twin MG-42 is in desperate need of is the “magazine-o-plenty”, but I hear they are really becoming scarce.

Sources:

Franks Center, Inc
RR#1, Box 45
Nevada, MO 64772
1-800-666-9190

Natchez Shooters Supply
P.O. Box 22247
Chattanooga, TN 37422
1-800-251-7839

Sarco, Inc
323 Union Street
Stirling, NJ 07980
1-908-647-3800

Outland Sales and Service, Inc.
P.O. Box 1082
Brunswick, Georgia 31521-1082
1-770- 924-2278

This article first appeared in Small Arms Review V1N12 (September 1998)
Tags: 1998Double Your FunLegal and Affordable Title I Fun: The Twin MG-42/22MG-42/22September 1998V1N12William D. Ehringer
Previous Post

The AK-100 Series Kalashnikov Rifles

Next Post

HK USP: Past Present & Future, Part I

Next Post
HK USP: Past Present & Future, Part I

HK USP: Past Present & Future, Part I

TRENDING STORIES

  • VALKYRIE ARMAMENT BELT-FED CONVERSION

    VALKYRIE ARMAMENT BELT-FED CONVERSION

    0 shares
    Share 0 Tweet 0
  • EAST GERMAN WIEGER STG RIFLE

    0 shares
    Share 0 Tweet 0
  • The Complete Guide To Colt M-16 Models: Part I

    0 shares
    Share 0 Tweet 0
  • Forgotten M16A1 Rifle Manufacturers: GM/Hydra-Matic and Harrington & Richardson – Part I

    0 shares
    Share 0 Tweet 0
  • The Second Generation AR57: Drop-in 5.7 Upper For Your AR

    0 shares
    Share 0 Tweet 0

RECENT POSTS

SIG Sauer’s Full-Size Compact P365 “Fuse”

SIG Sauer’s Full-Size Compact P365 “Fuse”

June 27, 2024
The Importance of Offhand Shooting

The Importance of Offhand Shooting

June 25, 2024
BOOK REVIEW – The Collector’s Guide to the SKS

BOOK REVIEW – The Collector’s Guide to the SKS

June 20, 2024
True to Form: The Tisas 1911A1 ASF

True to Form: The Tisas 1911A1 ASF

June 18, 2024
Setting the Record Straight on the Fedorov Avtomat

Setting the Record Straight on the Fedorov Avtomat

June 6, 2024

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

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

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
  • Events
  • About
    • About Small Arms Review
    • About Chipotle Publishing
    • Contact Us
    • Other Publications
      • Small Arms Defense Journal

© 2022 Chipotle Publishing | All Rights Reserved

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

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!