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Browse Rock River Arms Semi-Auto products for sale at the lowest prices online.

.308 Winchester

6.5mm Creedmoor

.450 Bushmaster

.300 AAC Blackout

5.56×45mm NATO

.243 Winchester

6.8mm Remington SPC

5mm Remington Rimfire Magnum

ROCK RIVER ARMS LAR-15 STD A4 5.56/223 20" CHR - Rock River Arms

ROCK RIVER ARMS LAR-15 STD A4 5.56/223 20" CHR

Rock River Arms

ROCK RIVER ARMS A4 Varmint 5.56/223 LH 20" 30 - Rock River Arms

ROCK RIVER ARMS A4 Varmint 5.56/223 LH 20" 30

Rock River Arms

ROCK RIVER ARMS LAR-15 LEF-T Coyote V2 223 Wylde 20" - Rock River Arms

ROCK RIVER ARMS LAR-15 LEF-T Coyote V2 223 Wylde 20"

Rock River Arms

ROCK RIVER ARMS LAR-9 R9 Competition 9mm 16" Rifle, Rubber Grips - Rock River Arms

ROCK RIVER ARMS LAR-9 R9 Competition 9mm 16" Rifle, Rubber Grips

Rock River Arms

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