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Mfg Item #: APRH101206C
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*