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Sig Sauer


(4 Reviews)

SKU: MAG-365-9-15
Model: P365
UPC: 798681616886
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  • Product Details

Increase your capacity to 15 rounds with an extended 9MM SIG P365 magazines, compatible with all SIG SAUER P365 micro-compact carry pistol models. Extended SIG P365 magazines feature a unique 'witness hole' that remains visible when the magazine is fully inserted, allowing the user to conduct round checks quickly and without removing the magazine. 
Additionally, the 15-Round SIG SAUER P365 XL magazine extension also ships with an easy-to-install baseplate to accommodate the standard P365 and P365X models. When installed, the magazine's baseplate leaves no gap when inserted into a standard P365, and the overall length is extended an additional 1" compared to the 10 round flush fit magazine.


  • Model Compatibility: P365, P365X, P365XL
  • Caliber: 9MM Luger
  • Magazine Capacity: 15 rounds


ManufacturerSig Sauer
Pricing UnitEA
Meta DescriptionIncrease your capacity to 15 rounds with an Extended 9MM SIG P365 magazines, compatible with all SIG SAUER P365 micro-compact carry pistols. Available Now!
Meta Keywordssig p365 magazines, sig sauer p365 xl magazine extension, Gun Shop, Gun Shop Near Me, Gun Store, Gun Store Near Me, Shoot Point Blank Gun Shop, Shoot Point Blank Gun Store, Firearm Accessories Near Me, Firearm Accessories, Firearm Accessories For Sale
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  • Customer Reviews

4 out of 5

4 total reviews for this product






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Ronald s
Review what title

It worked great

Chris H
15 round magazine

Love the extra capacity this magazine provides. The fit at the back to gun could be better. It does not fit as well as the 12 round in my wife’s 365. If function is your goal you will be happy. If you want good looks too you may be disappointed.

Robert E.
SIG P365 9MM MAG 15RD / P365XL

Way too much wiggle in the clip once incerted into the weapon. Is there a fix for this?

Drew B
Slide lock issue

The mag is a quality SIG product, but it fits loosely in the well and often does not lock the slide open on the last shot. Never experienced a failure to feed or extract, but it is a problem on the last round. If i hold the mag steady the slide does lock back consistently. Since this is my ‘backip’ mag it is not a show stopper, but i expected better from a SIG product.

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