XTech Tactical MTX Magazine Extension Features The Xtech Tactical MTX magazine extension adds 3 rounds to a standard Sig Sauer P365 12 round 9mm magazine bringing total capacity to 15 rounds while keeping the compact footprint of the original magazine. A custom engineered spring is included to guarantee reliable feeding and proper last round bolt hold open performance after the extension is installed. This extension is built specifically to work with Sig P365 12 round magazines on the standard frame and its design allows it to mount on magazine bodies with inward facing tabs where other extensions typically cannot be used. Black polymer construction keeps the extension durable while matching the factory look of the magazine. Beyond added capacity the MTX extension provides a pinky extension for improved tactile feel and control during recoil management and follow up shots. This grip improvement gives shooters more confidence handling their P365 without having to step up to a larger XL frame pistol. An included installation video QR code walks users through the simple process of adding the extension to their magazine at home. This Xtech Tactical MTX extension is available for sale at GrabAGun for Sig P365 owners who want more capacity and a more secure grip. XTech Tactical MTX Magazine Extension Specifications Manufacturer: XTech Tactical Model: MTX Compatible Hosts: Sig Sauer P365 Caliber: 9mm Color: Black Material: Injection-Molded Polymer Capacity Increase: +3 Rounds Available At: GrabAGun