Herrington Arms HCGX-V2 Taurus GX4/GX4 Carry Compensator Black. It is made of high-quality 7075 aluminum and coated with either FDE Cerakote Sniper Green Cerakote or Black Anodized finish to compliment your specific GX4 configuration. The HCGX4 will work with the stock springs provided your gun has gone through recommended break in period of 500 rounds factory new ammunition is used with the threaded barrel you intend to use with the firearm before installing a compensator. Fits on 1/2-28 factory threaded barrels and most aftermarket barrels. Specifications for Herrington Arms HCGX-V2 Taurus GX4/GX4 Carry Compensator: Manufacturer: Herrington Arms Color: Black Finish: Anodized Fabric/Material: 7075 Aluminum Threads per Inch: 1/2x28 Gun Make: Taurus Gun Model: Taurus GX4 Features of Herrington Arms HCGX-V2 Taurus GX4/GX4 Carry Compensator Engineered to greatly reduce vertical AND horizontal recoil of your gun REQUIRES A THREADED BARREL Works with ONLY Taurus GX4 AND GX4 CARRY 9mm models Blems are cosmetic ONLY. They will function as normal Package Contents: Herrington Arms HCGX-V2 Taurus GX4/GX4 Carry Compensator 1/16 Allen key Steel replacement 6-32 set screws What firearm models does the manufacturer say Herrington Arms HCGX-V2 Taurus GX4/GX4 Carry Compensator is compatible with? The manufacturer says that Herrington Arms HCGX-V2 Taurus GX4/GX4 Carry Compensator is compatible with Taurus GX4Herrington Arms HCGX4-V2-BL: HCGX-V2 Taurus GX4/GX4 Carry Compensator Black