Upgrade your Sig Sauer P365 380 pistol with the MTX 365 380 +3 Magazine Extension. Converts factory 10-round magazines into 13-round capacity while maintaining an ergonomic grip length similar to the P365X/XL. Includes a custom-engineered spring for reliable last-round bolt hold open. made in specialized factories for seamless compatibility with factory 10-round 380 magazines.
Features:
- Adds +3 Rounds to P365 10-round magazines (380)
- Engineered extended spring for consistent feeding
- Quick installation with detailed video instructions
- Robust performance backed by innovative, patented design
- Patents: US 11,408,697 B2 and US 11,168,954 B1
Specifications:
- Color: Black
- Magazine Capacity: 3 Round
- Gun Make: SIG Sauer
- Gun Model: SIG Sauer P365


