The Aero Precision Low-profile Gas Block is a great first step in creating a reliable gas system for your AR-15 or AR-308 rifle. It's precision-machined right here in the USA from 4140 hardened steel, and features a nitride finish for corrosion resistance. Fits barrels with .750 inch outside diameter 4140 hardened steel with nitride finish Low profile for easy fitment Made in USA Includes (2) steel 10-32x3/16 knurled cup point set screws Note: roll pin not included Order today!
