Sharps Bros. SBPK01 365 Improved, X Macro, Pistol Kit, 9MM, 3.1 Sharps Ported Barrel, Sharps 365XL-Improved Slide, Ported with Integrated Compensator, Optic Ready, Fiber Optic Sights, Nitride Finish, Black, Sharps 365 Improved XMacro Grip, Enhanced Trigger Guard, Ambidextrous Gas Pedal, M1913 Picatinny Rail, Flared Magazine Well, Fire Control Unit Not Included SBPK01 Featuring superior Sharps Bros" Craftsmanship" the 365 Improved X Macro Pistol kit will elevate your Sig Sauer P365. With it's solid aluminum frame" ported barrel and slide" integrated compensator" and ergonomic slide serrations" all you need to do is drop in a P365 Fire Control Unit and the Sharps Bros 365 Improved X Macro kit is ready to go.