The XTech MTX 365 Magazine Extension is a premium upgrade for the Sig Sauer P365, boosting its capacity from 10 to 13 rounds while enhancing grip comfort. Designed to match the grip length of the P365X/XL models, this extension provides improved control and a more confident hold. Compatible with factory 10-round magazines and the Wilson Combat P365 frame, it features a patented design that fits securely on SIG magazines with inward-facing tabs. Made from durable injection-molded polymer, it includes a custom-engineered spring for reliable feeding and last-round bolt hold open. This extension offers easy installation and unmatched reliability for everyday carry or range use.