Sons of Liberty Gun Works SOLGW Gas Block V2 .625 Updated Gas Block Design Black. Designed to work with any handguard on the market. Our gas block is supplied with Knurled Head set screws and is designed to work with a properly dimpled barrel. When installed correctly it will provide a lifetime of service. Specifications for Sons of Liberty Gun Works SOLGW V2 Gas Block: Manufacturer: Sons of Liberty Gun Works Color: Black Fabric/Material: 4140 Steel Gun Make: AR Platform Gun Model: AR-15 Condition: New Features of Sons of Liberty Gun Works SOLGW V2 Gas Block Designed to ride against the Barrel Shoulder without a gap. Package Contents: Sons of Liberty Gun Works SOLGW V2 Gas Block Knurled Head Set Screws What firearm models does the manufacturer say Sons of Liberty Gun Works SOLGW V2 Gas Block is compatible with? The manufacturer says that Sons of Liberty Gun Works SOLGW V2 Gas Block is compatible with AR-15Sons of Liberty Gun Works GB625V2: SOLGW Gas Block V2 .625 Updated Gas Block Design Black