This guide details the installation of a Geissele gas block and Damage Industries gas tube onto a Rainier Arms 10.5-inch barrel for an AR-15 pistol or SBR build. It emphasizes using specialized Geissele tools for precise alignment and secure roll pin installation, as demonstrated by an experienced firearm builder.
You've reached the end! 1 videos loaded.
Gun Laws by State
Read firearms regulations for all 50 states + D.C.
Find Gun Dealers
Search licensed FFL dealers near you.
