I have one virtually new complete bolt carrier group from rock river arms that needs a new home. Long story short- bought an upper and a lower without bolt group. Ordered bolt group from RRA but got impatient and bought one at a gun show. Fired 6 rounds out of this bolt group to ensure everything works fine. $110 shipped to the lower 48. I'll throw in a GI 30rd mag (center industries) for an extra $5. USPS money order preferred.
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