Rock River Arms 4.5" A4 AR-15 Upper, 223/556, BCG, M-Lok Rail

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$549.00

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SKU:: RRA-AR0369B
UPC:
BRAND:: Rock River Arms
Manufacturer Number:: AR0369B
Caliber:: 223 Remington
Caliber:: 5.56x45mm
Unit of Measure:: Each

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4.5 INCH A4 UPPER HALF .223/5.56MM - WITH RRA LIGHTWEIGHT FREE FLOAT RAIL, M-LOK® COMPATIBLE

ALL NFA RULES APPLY.

CALIBER:5.56MM NATO CHAMBER FOR 5.56MM AND .223 CALIBER
UPPER RECEIVER:FORGED A4
BARREL:4.5 INCH CHROME MOLY, FULL AUTO CHAMBER, 1:9 TWIST
GAS BLOCK:LOW PROFILE GAS BLOCK
MUZZLE DEVICE:SMITH VORTEX FLASH SUPPRESSOR / 1/2–28 THREAD
HANDGUARD:RRA LIGHTWEIGHT ALUMINUM FREE FLOAT, 4.25 INCH PISTOL LENGTH, M-LOK COMPATIBLE
INCLUDES:BOLT CARRIER GROUP, CHARGING HANDLE ASSEMBLY AND LOW PRO M-LOK® COMPATIBLE HANDSTOP
NOTE:ALL NFA RULES APPLY.

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