The Xtech Tactical XTT132BLKP365 MTX 9mm Fits Sig 365 Black Polymer magazine extender is engineered to turn your standard SIG Sauer P365 10-round magazine into a 13-round setup with a more confident grip. This kit includes the MTX polymer extension body and a purpose-built extended spring, working together to maintain reliable feeding and last-round hold open while matching the pistol’s clean, factory look.

Ideal for everyday carry and range training, this MTX extender gives P365 owners a P365X/XL-style grip feel without changing frames, while still using their existing 10-round magazines. It installs quickly with the included spring and is designed specifically around the P365 magazine’s internal geometry for consistent performance. Xtech Tactical is known for thoughtful, patented magazine upgrades that focus on reliability, ergonomics, and smart design.

Key Features:

• Manufacturer: Xtech Tactical
• Model: MTX 365 +3 Magazine Extender
• Caliber: 9mm Luger
• Capacity: Converts 10-round magazines to 13 rounds
• Compatible Models: Sig Sauer P365 using factory 10-round magazines
• Material: Polymer extension with engineered extended spring
• Style: Grip and magazine capacity extension