Brownells AR-15/M16/M4 Mil-Spec Buffer Tube Assembly
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- Six position AR-15/M16/M4 receiver extension assembly
- Includes Mil-Spec receiver extension/buffer tube, receiver lock plate, lock-nut/castle nut, carbine buffer and carbine buffer spring
- Buffer tube is Mil-Spec diameter and 6061 aluminum
- Carbine buffer weight is 3 oz
- Buffer spring is 17-7 stainless steel
Fits
standard AR-15/M16 lower receivers. Mil-spec diameter. Includes buffer
tube, lock plate, castle nut, buffer and buffer spring.
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