SAA H2 (Heavy) Buffer for your carbine, AR15, M4 Standard USGI part for the M4 Carbine. The heavier weight buffer is used to slow down the cycle rate on carbine style AR rifles which helps lengthen receiver life. A heavyweight buffer could potentially increase performance on hotter loads by slowing the cycle rate enough to allow the magazine to ready a new round for the chamber.
Weighted with 2 tungsten and 1 steel weights
Made in the USA