XTech Tactical MTX 365 +3 Magazine Extension for SIG Sauer P365 12-Round 9mm XT3020501

Product Description

The XTech Tactical MTX 365 magazine extension upgrades your SIG Sauer P365 factory 12-round 9mm magazine by adding +3 rounds for increased capacity and improved purchase. Designed to reuse your original magazine body, this extension kit includes a custom-engineered extended spring to promote consistent feeding and dependable last-round hold open. Built specifically for standard P365 frames, it’s a practical capacity and control upgrade for everyday carry or range use.

Product Highlights

• Adds +3 rounds to factory SIG Sauer P365 12-round 9mm magazines (converts 12 to 15).
• Custom-engineered extended spring for reliable feeding and last-round hold open.
• Designed for standard P365 grip frames; does not fit X or XL grip modules.
• Reuses the original magazine housing for a straightforward capacity upgrade.
• Innovative patented design (US 11,408,697 B2 and US 11,168,954 B1).

Specs

• Brand: XTech Tactical
• Product Type: Magazine extension / +3 basepad kit
• Compatibility: SIG Sauer P365 factory 12-round magazines (standard P365 frame only)
• Caliber: 9mm Luger
• Color: Black
• Manufacturer Part Number: XT3020501
• UPC: 856822007822
• Patents: US 11,408,697 B2; US 11,168,954 B1

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