An AR-15 buffer is a recoil management component located inside the buffer tube, designed to absorb recoil and ensure reliable cycling of the action in AR-15 rifles. It works with AR-15 lower receivers, buffer tubes (carbine or rifle length), buffer springs, stocks, upper receivers, and bolt carrier groups. The buffer is essential for smooth operation, consistent performance, and proper function in AR-15 builds, and is available in various weights to match different setups and calibers.
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