CMMG ZEROED AR15 ADJSTBLE GAS BLOCK

CMMG ZEROED Adjustable Gas Block, Fits AR-15 with .750 Barrels, Nitride Finish, Black 55DA31F
If you're looking to shoot suppressed or just fine tune your AR to your preferred ammo, the CMMG ZEROED Adjustable Gas Block gives you the freedom to dial in the gas system exactly to your liking. The sacrificial cleanout chamber and user-serviceable design provides excess carbon a place to go where you can still clean it out.