.750 Gas Block- Billet Strength for your rifle The team at Next Level Armament takes the time to machine each .750 gas block from premium billet tool steel on Haas SS CNC machines. Our gas block mounts with set screws, ensuring a secure, long lasting mount to your barrel. After applying a QPQ Nextride coating for a clean and durable finish, we etch our logo. Designed with a narrow shoulder, our block allows more clearance for today's ultra slim hand guards. Whether building an AR platform rifle or upgrading your hand guard, the billet quality of this gas block enhances your rifle. Add a Next Level barrel and upper receiver to complete your upper assembly with the highest quality parts on the market. We include a gas tube roll pin with each gas block.