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RRA Complete Mid-Length A4 Upper 450BM 16" 5-Round
Rock River Arms$750.00Rock River Arms A4 mid-length upper comes chambered in .450 Bushmaster with a 16" chrome moly 1/24 twist barrel. Additionally this upper includes a RRA 13" M-Lok compatible lightweight free float... -
350 Legend Car SS Half HP Upper RRA 350L0326
Rock River Arms$647.99CALIBER:.350 LEGENDUPPER RECEIVER:FORGED A4BARREL:16 INCH STAINLESS STEEL, 1:16 TWIST, CRYOGENICALLY TREATEDMUZZLE DEVICE:RRA OPERATOR BRAKE, 1/2-36 THREADGAS BLOCK:LOW PROFILE GAS BLOCK, CAR LENGTH... -
RRA Complete Carbine A4 Upper 458 SOCOM 16"
Rock River Arms$790.00Rock River Arms complete Tactical Carbine upper is an A4 upper chambered in .458 SOCOM with a 16" chrome moly bull barrel and 1:14 twist. Additionally the upper comes with a complete bolt carrier... -
RRA CMP Coyote Carbine A4 Upper 300 Blackout 16"
Rock River Arms$767.99MSRP: $820.00Rock River Arms A4 Coyote Carbine upper comes chambered in .300 AAC / Blackout with a 16" chrome moly 1/8twist barrel. Additionally this upper includes a RRA 12.5" M-Lok compatible lightweight free...
Description
CALIBER:.450 BUSHMASTERUPPER RECEIVER:FORGED A4BARREL:16 INCH STAINLESS STEEL, 1:24 TWIST, CRYOGENICALLY TREATEDMUZZLE DEVICE:RRA OPERATOR BRAKE, 5/8-32 THREADGAS BLOCK:LOW PROFILE GAS BLOCK, MID-LENGTH GAS SYSTEMHANDGUARD:RRA 13 INCH EXTENDED LIGHTWEIGHT FREE FLOAT RAIL, M-LOK COMPATIBLEINCLUDES:BOLT CARRIER GROUP, CHARGING HANDLE ASSEMBLY AND ONE 5 ROUND MAGAZINE
