The Herrington Arms HC43 Glock Micro Compensator is designed to deliver severely reduced recoil with your trusty micro-Glock pistols. It is made of extremely durable and light 6061 Aluminum and coated with Black Anodized or FDE Cerakote finish that ensures great visual compatibility with your Glock configurations. Rest assured, it's going to look great and perform amazing with your OEM Glocks. We did not want to leave out the fully custom build guys and gals, so we now offer a NO FIN option that is the exact same compensator. It simply does not offer the fins off the back that wrap around the gen 5 slides like the original HC43 comp. Most aftermarket slides will not work with the finned option, thus the HC43B was born! The HC43 Compensator is designed to work with Glock 43/43x/48 variants with 1/2-28 barrels and they must be a GEN 5 OEM Glock slide or Shadow Systems CR920! It works great with stock springs, so no change is required. Specifications for Herrington Arms HC43 Pistol Compensator For Glock 43/43X/48: Manufacturer: Herrington Arms Cartridge: 9mm Luger Finish: Aluminum Fabric/Material: 6061 Aluminum Gun Make: Glock Gun Model: Glock 48, Glock 43X, Glock 43 Condition: New Features of Herrington Arms HC43 Pistol Compensator For Glock 43/43X/48 Compact size micro compensator Engineered to greatly reduce recoil and get back on target quicker 6061 High durable aluminum ensures reliability Black Anodized or FDE Cerakote finish provides great visual compatibility with your Glocks REQUIRES A THREADED BARREL HC43 FIN version works with ONLY OEM Gen 5 Slides! HC43B NO FIN version works with all slides! No questions asked, lifetime warranty! Works on a Shadow Systems CR920 Attached to a G43 its overall length is .08 longer than a stock G48 Package Contents: Herrington Arms HC43 Pistol Compensator For Glock 43/43X/48