The ultimate upgrade for your Sig Sauer P365 380 pistol - the MTX 365 380 Plus, 3-Round SIG P365 10 rd to 13 rd Mag Extension! Transform your standard P365 frame 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 380 frame. Please note this only works with Sig P365 10 round magazines and standard frames. The unique design enables the extender to work on the Sig mag bo Mfg: Xtech Tactical