Colt Sp62913 Ar-15/M16 9mm Smg Buffer

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The 2-piece 9mm SMG buffer body is made of solid steel and utilizes three steel weights as well as a neoprene bumper. Included also is the three rubber disks, two between the steel weights and the third between the first steel weight and the front of the buffer body. The additional weight was added so slow down the incredible high rate of fire of the blowback SMG. This will also be found in early 9mm semi-automatic only carbines. This buffer should not be used in any 5.56mm carbines. Mfg: Colt SPECS: Fits 9mm AR15 rifles. Not for use with 223/5.56 or 308 rifles.