The Griffin Armament Primo Gas Block is machined from high quality 416R stainless steel and quench polish quench Nitride coated. This low profile gas block comes with two set screws for installation and is drilled if you plan on pinning it to your barrel. The set screws feature knurled grip cup points for secure attachment to the barrel. With a .750” inner diameter, it will be compatible with most AR-15 barrels and some AR-10 barrels.
- 416R steel
- QPQ Nitride finish
- .750” inner diameter
- Low profile design
- Includes splined barrel pin
- Knurled grip cup point fasteners
- Includes hex key
- Includes gas tube roll pin
- Drilled for barrel pin installation
Griffin Armament produces serious use products with exceptional quality at a fantastic value. Designed with real world experience and built in the U.S.A., their product line has the parts you need. They’re built to last a lifetime and backed by their perpetual lifetime warranty.