V Seven Titanium .625 Gas Block Set Screw T .625. The TiCN coating provides the strength and corrosion resistance that NiB3 requires. The lighter weight of the gas block reduces weight and the amount of heat generated during cycle of the weapon. The V Seven .625 Titanium Gas Block has an optimized geometric profile which allows it to be installed in a smaller number of different configurations. The symmetrical U-shaped design allows the shooter to easily clock the gas block without any roll pins or set screws. It may be installed in one of the common A2 pistol length gas configurations or the more common RD configuration. Specifications for V Seven Titanium .625 Gas Block: Manufacturer: V Seven Color: Black Fabric/Material: Titanium Size: 0.625 Caliber: 5.56x45mm NATO Gun Model: AR-15 Condition: New Package Contents: V Seven Titanium .625 Gas Block What firearm models does the manufacturer say V Seven Titanium .625 Gas Block is compatible with? The manufacturer suggests that V Seven Titanium .625 Gas Block is compatible with AR-15V Seven T .625: Titanium .625 Gas Block Set Screw