The Herrington Arms HC365 Compensator is designed to work flawlessly with Sig Sauer P365 series, it does an amazing job at reducing vertical climb of muzzle as well as reducing the horizontal recoil arc, it is made of high-quality 6061 aluminum and coated with a Black Cerakote finish to compliment your specific Sig P365 configuration. Works great with stock springs so no need to change anything, fits on 1/2-28 threaded barrels for the P365, P365X, and P365XL models. Product Features Engineered to greatly reduce vertical and horizontal recoil of your gun With the XL Tactical Development rail you can achieve an integrated look Makes target re-acquisition easier with follow-up shots Highly durable 6061 Aluminum for extreme longevity and lightness Black Cerakote finish to compliment your specific configuration Easy to install, no gunsmith required! Uses Steel replacement 6-32 set screws Product Specifications Material: 6061 Aluminum Finish: Black Cerakote finish Compatibility: P365, P365x, and P365XL Included: 1/16 Allen key, Steel replacement 6-32 set screws