The BCM AR-15/M16 Pistol Receiver Extension kit has a 1.2” outside diameter which makes it compatible with the Sig Sauer SB-15 Stabilizing Brace. Made from 7075 T6 aluminum with a hard coat anodized finish, accepts carbine buffer and action springs.
AR-15, Issue:11, Page:041
Big Book Catalog, Issue:71, Page:045
SPECS: Made in the USA and manufactured from high quality 7075 T6 aluminum.
The Primary Weapons Systems Enhanced Pistol Buffer Tube is based off of their popular Enhanced Buffer Tube, but is compatible with standard pistol braces and cheek pieces.
Unique lighting cuts help reduce weight by 1oz, while extended carrier support lips help with smoother cycling.
- Made from extruded 6061 aluminum
- Weight: 4.7oz
- Hard coat anodized finish
This also includes Primary Weapons System Ratchet lock castle nut and QD end plate.
The ACE Pistol tube Assembly Uses a carbine buffer and spring for the ultimate in reliability. The overall length is only 7” from the back edge of the receiver. Includes: 1.25” ambidextrous sling mount, billet machined gusset (to retain detent and keep extension from unscrewing), special short receiver extension tube, foam overtube (you cut to length), CAR buffer and spring. The DSC Pistol Tube Assembly is primarily the same, however it does not have the outer foam cover, and the tube has the standard end plate.
SPECS: Outside Diameter of 1.187 on the smooth portion.