ABC RIFLE COMPANY AR-10/AR-15 American Built Custom Low Profile Steel Gas Block .750 in Gas Block Black. 750 gas block is designed for AR-15 and AR-10 platforms requiring a slim reliable gas system solution. The black nitride finish enhances corrosion resistance and wear durability ensuring long-term performance. Its compact design fits easily under most free-float handguards. Includes two steel set screws for secure barrel mounting and a roll pin for straightforward gas tube installation making it a dependable upgrade or replacement component. Specifications for ABC RIFLE COMPANY AR-10/AR-15 American Built Custom Low Profile Steel Gas Block: Manufacturer: ABC RIFLE COMPANY Color: Black Fabric/Material: 4140 Steel Gas Block Journal Size-Diameter: .750 in Gun Make: AR Platform Gun Model: AR-10 AR-15 Package Contents: ABC RIFLE COMPANY AR-10/AR-15 American Built Custom Low Profile Steel Gas Block What firearm models does the manufacturer say ABC RIFLE COMPANY AR-10/AR-15 American Built Custom Low Profile Steel Gas Block is compatible with? The manufacturer suggests that ABC RIFLE COMPANY AR-10/AR-15 American Built Custom Low Profile Steel Gas Block is compatible with AR-15 AR-10ABC RIFLE COMPANY GB750US-B: AR-10/AR-15 American Built Custom Low Profile Steel Gas Block .750 in Gas Block Black