Every gas-operated AR (those that don't employ a piston system) needs a gas block of some type to cycle between shots. If you're building an old-school or retro style AR, it may have a fixed front sight that doubles as the gas block or some fold-up variant thereof. But if it's any number of countless newer designs, it'll probably have a gas block that only serves as the gas block. Furthermore, more often than not, it'll be low-profile in its dimensions, so that some type of handguard can cover and shield it. The handguard will have a pic rail on top on which the shooter can mount either a fixed or a folding sight to serve as the rifle's front sight. If you're in the latter group, this is your gas block. See below for more info.
- Compatible with: Mid-length, Carbine-length, and Rifle/Full-length Rails and any 5.56mm or .223 with a .750" diameter barrel
- Set Screws Included
- Diameter: 0.750"
- Net Weight: 1.5 oz.
- Color: Black
- Material: All Steel Construction
- Finish: Black Oxide
- CNC Precision-Machined Steel
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