A buffer is a recoil management component located inside the buffer tube of AR-15, AR-10, and similar rifles. It absorbs recoil and helps ensure reliable cycling of the action by working with the buffer spring. The buffer works with the lower receiver, buffer tube (carbine or rifle length), buffer spring, stock, upper receiver, and bolt carrier group. It’s essential for smooth operation, consistent performance, and proper function in AR-platform rifles, and comes in various weights to match different setups and calibers.
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