Our patented Roller Cam Pin is just one more example of how far we will go to reduce friction and drag. Standard AR cam pins feature a square head that grinds along the inside of the aluminum receiver.
Used as a replacement part for most piston AR bolt carrier groups.
If you wish to upgrade a mil-spec carrier, you will need the ROLLER CAM PIN UPGRADE KIT.
Note: The 5.56 version fits with all Gas Piston 5.56 carriers, all REVOLUTION carriers, and all ROGUE carriers