An AR-15 rifle length buffer extension spring is a long recoil spring designed for AR-15 rifles with fixed, rifle-length buffer tubes and stocks. It helps absorb recoil and ensures reliable cycling of the action. The spring works with AR-15 lower receivers, rifle-length buffer tubes, rifle-length buffers, A2 fixed stocks, upper receivers, and bolt carrier groups. It’s essential for proper function and smooth operation in AR-15 builds using rifle-length buffer systems, making it ideal for traditional and precision rifle setups.
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