Brownells AR-15 Receiver Extension 6-Position Mil-Spec
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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
||23 x 17 x 15 cm