PRI-Precision Reflex Low Profile Stand Alone Gas Block for the AR-15/M-16 - Steel, 0.750 inch

Precision Reflex
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AR15 - M16 Precision Reflex Steel Gas Block for the AR-15 - M16 barrel with a barrel diameter of 0.750 inches. Low profile design allows this gas block to fit under most tactical free floated handguards that may extend past the gas block. Color: Black