Herrington Arms HC43 Glock 43/43X/48 HC43 Pistol Compensator Flat Dark Earth. We engineered the comp with side fins and no fins so it has a seamless design with Gen 5 slides Glock clones and aftermarket slides as well. The HC43 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. When testing this compensator we have data showing it mitigating 29.5percent muzzle flip reduction depending on what 9mm load and model used. Specifications for Herrington Arms HC43 Glock 43/43X/48 HC43 Pistol Compensator: Manufacturer: Herrington Arms Caliber: 9mm Luger Fabric/Material: 7075 Aluminum Threads per Inch: 1/2x28 Gun Make: Glock Gun Model: Glock 48 Glock 43X Glock 43 Condition: New Features of Herrington Arms HC43 Glock 43/43X/48 HC43 Pistol Compensator Compact size micro compensator HC43 FIN version works with ONLY OEM Gen 5 Slides HC43 NO FIN version works with most aftermarket slides Works on a Shadow Systems CR920 Attached to a G43 its overall length is .08 longer than a stock G48 Blems are cosmetic ONLY. They will function as normal - May have nicks dings pitting machining marks chips discoloration etc. DOES NOT WORK WITH KKM OR BARSTO BARRELS AMMO DISCLAIMER: We DO NOT recommend using plated bi-metal or frangible ammo in ANY of 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 HC43 Glock 43/43X/48 HC43 Pistol Compensator 5/64 Allen Key Steel Replacement 8-32 Set Screws What firearm models does the manufacturer say Herrington Arms HC43 Glock 43/43X/48 HC43 Pistol Compensator is compatible with? The manufacturer says that Herrington Arms HC43 Glock 43/43X/48 HC43 Pistol Compensator is compatible with Glock 43 Glock 43X Glock 48Herrington Arms HC43-NOFIN-FDE: HC43 Glock 43/43X/48 HC43 Pistol Compensator Flat Dark Earth