AR-15 Four Rail Gas Block .750" Diameter DPMS Black Aluminum 2" Long U.S. Made

DPMS
884451002598
GB-4RA
ARR-576
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New Aircraft Aluminum Gas Block with 4 Picatinny rails. Now you can mount detachable front sights, lasers, flashlights or any rail accessory all at the same time. Bore diameter is .750 Anodized Black. Comes ready to install.