The "sproing!" The noise your AR-15/M4/M16 rifles makes, the noise coming from the buffer spring resonating its vibrations through the stock. Now there is a way to quiet this with Buffer Technologies patent pending new buffer spring. Replaces the original buffer spring no need for grease or oils that captures dirt and carbon or expensive hydraulic replacements. Made for the rifle or carbine. Proudly made in the U.S.A.
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