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These gas blocks along with our gas tubes create an efficient and reliable gas system for your AR15 or AR 308 rifle build.
Features:
Fits barrels with .875 Outer Diameter
Constructed from 4140 hardened steel
Nitride coating
Low profile for easy fitment
Set Screws are Steel 10-32 x 3/16 Knurled Cup Point
Made in the USA
*Roll pin not included*