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Brownells AR15/M4 Buttstock Kit

Brownells AR15/M4 Buttstock Kit

Fits any standard AR-15 rifle or carbine lower receiver. Kit includes buffer tube, receiver lock plate, lock nut, toe-mounted steel sling loop, carbine recoil spring and buffer. Made from fiberglass-reinforced, injection-molded nylon and the steel lock nut has four square notches and pre-cut detents for staking to lock plate.

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