This is the American Resistance “stress free” 4140 steel gas block for .750 barrels.
- QPQ Nitride coated
- .750 diameter
- 2 steel set screws for the tightest fit possible
- Screw hole measurement: .440 center to center
- Interior surface is honed for a stress free install
- Low profile allows for installation under free-float handguards
- Roll pin not included. The roll pin comes with our gas tube package
100% made in USA.