CMMG 55CA65A Receiver Extension Kit Black Buffer Tube, Carbine Buffer, Ambi Sling Mount End Plate, Fits AR-15 Pistol Dummy Rounds There is a hidden rear

There is a hidden rear compartment with chest rig attachment system

The key to the Cu+2 Copper Removers copper removing capabilities is a unique two step process

Paired with a sheath

Caliber change die wrench and Through ram primer disposal tube

These kits are the perfect project for families to build together or to help pass those long winter nights

CMMG 55CA65A Receiver Extension Kit Black Buffer Tube, Carbine Buffer, Ambi Sling Mount End Plate, Fits AR-15 Pistol Dummy Rounds There is a hidden rearCombine this kit with your choice of lower parts kit to complete your pistol lower group. Includes CMMG pistol receiver extension, carbine buffer assembly and carbine action spring.