Home / Products / Xtech Tactical / XTech Tactical MTX 365 +3 Magazine Extension w/ Spring For Sig P365 Magazines
XTech Tactical MTX 365 +3 Magazine Extension w/ Spring For Sig P365 Magazines
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$19.79
MSRP
$19.79
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1 Stores
Updated
Aug 26, 2026
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Specifications
Brand
MPN
XTT132-BLK-P365
Description
The ultimate upgrade for your Sig Sauer P365 pistol - the MTX 365 Plus, 3-Round SIG P365 Mag Extension! Transform your standard P365 into the extended grip length of the P365X/XL without compromising style or functionality by swapping the magazine. Made in the USA, this innovative and patented magazine extension is 100% reliable and designed to give you total control and improved grip on your firearm. The SIG P365 Mag Extension is compatible with factory 10-round magazines for the standard P365 and Wilson Combat P365 frames. Their unique design enables the extender to work on the Sig mag body with inward-facing tabs where other extenders cannot be used. This also allows for seamless integration with the P365 platform without compromising the overall aesthetics of your firearm. One of the main features of the SIG P365 Mag Extension is the custom-engineered spring, which guarantees unmatched reliability and ensures last-round bolt hold open. Furthermore, the SIG P365 Mag Extension provid
