Midwest Industries Upper Height Gas Block With Machined Rail For .750 Diameter Barrels MCTAR-UHGB. For .750 diameter barrels. 1913 Spec rail machined to same height as A-4 uppers. Specifications for Midwest Industries Upper Height Gas Block With...
Midwest Industries Upper Height Gas Block With Machined Rail For .750 Diameter Barrels MCTAR-UHGB. For .750 diameter barrels. 1913 Spec rail machined to same height as A-4 uppers. Specifications for Midwest Industries Upper Height Gas Block With...