Herrington Arms HCMPV2 M&P9 M2.0 Compensator Flat Dark Earth. 0 series. It is made of high-quality 7075 aluminum and coated with either FDE Cerakote or Black Anodized finish to compliment your specific M&P configuration. The HCMP 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 threaded barrels and most aftermarket barrels. Specifications for Herrington Arms HCMPV2 M&P9 M2.0 Compensator: Manufacturer: Herrington Arms Fabric/Material: 7075 Aluminum Threads per Inch: 1/2x28 Gun Make: Smith & Wesson Gun Model: Smith & Wesson M&P 9 M2.0 Features of Herrington Arms HCMPV2 M&P9 M2.0 Compensator Engineered to greatly reduce vertical and horizontal recoil of your gun Highly durable 7075 Aluminum for extreme longevity and lightness Black Anodize or FDE Cerakote finish to complement your specific configuration Easy to install no gunsmith required Uses Steel replacement 6-32 set screws MAKE SURE YOUR BARREL ONLY PROTRUDES THE SLIDE BY 5/8" FOR THE V1 MODEL DOES NOT WORK WITH KKM OR BARSTO BARRELS REQUIRES A THREADED BARREL Blems are cosmetic ONLY. They will function as normal. AMMO DISCLAIMER: We DO NOT recommend using plated bi-metal or frangible ammo in ANY of our compensators. Doing so will void the warranty and we will not cover or replace the comp if there are any damages. Package Contents: Herrington Arms HCMPV2 M&P9 M2.0 Compensator 1/16 Allen Key Steel Replacement 6-32 Set Screws For V1 The V2 Uses 8-32X1/8Th Set Screws And 5/64Th Allen Key What firearm models does the manufacturer say Herrington Arms HCMPV2 M&P9 M2.0 Compensator is compatible with? The manufacturer suggests that Herrington Arms HCMPV2 M&P9 M2.0 Compensator is compatible with Smith & Wesson M&P 9 M2.0Herrington Arms HCMP-V2-FDE: HCMPV2 M&P9 M2.0 Compensator Flat Dark Earth