Faxon Firearms Enhanced Assembled AR-15 Upper Receiver With Completion Kit

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FAXON FIREARMS ARAK-21 Complete Upper Recvr 7.62x39 12.5" AR-15

Timber Creek Outdoors TCO Enforcer Upper Parts Kit for AR-15, Blue - E UPK B

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Timber Creek Outdoors TCO Enforcer Upper Parts Kit for AR-15, Red - E UPK R

Timber Creek Greyman AR-15 Complete Build Kit, Urban - TC GK U