National Stock Number (NSN):  1005-01-537-6498

Authorized for use by United States Marines in all USMC M16 Rifles and M4 Carbines
(MI 05538D/10012A-OR/1A  31 Aug 2007)

Original patented "Drop-in" MIL-Spec Ambidextrous Mag Catch is self-contained design does not "cam" off receiver surface. Use with M16, M4, AR-15, and AR-10.  

Also used by the following military units:

US Army Special Forces 1st SFOD-D (Delta)

USMC SOCOM Detachment 1 (DET 1)


1st Force Recon Company, USMC (Used in Afghanistan and Iraq)

3rd Force Recon Company, USMC (Used in Iraq)

USMC (SAM-R Rifle used in Afghanistan and Iraq)

US Army 82nd ABN DIV 2/325, D Company, 3rd Platoon (Land Warrior)

SEAL Team 4


Canadian Special Operations Forces (JTF 2)

Canadian Army (C7A2 and C8A3 Carbine)

Norwegian Special Forces (C8SF Carbine)

Danish Forces (M10 Carbine)

United Kingdom Special Forces (L119A2)