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Yankee Hill Machine Co., Inc.: AR15 GAS BLOCK FRONT SIGHT W/RAIL .750 STEEL BK YHM-9835A – YHM YHM-9835A AR-15 Low Profile Gas Block with Integrated Front Sight Rail .750 Diameter Steel Construction Black Phosphate Finish Set Screws Included Rail for A2 Sight Precise Gas Flow Durable Reliable M4 Barrel Compatible Gunsmith Install featuring gas block sight. Supreme yhm 9835a – Yankee Hill premium ar15 gas block front sight rail .750 yhm-9835a supreme reliable legendary yhm block.
YHM AR15 Gas Block Front Sight field tested trusted versatile premium reliable supreme YHM-9835A.