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Customer Reviews
Most Recent Reviews S15 Gen 3 Glock 43X/48 15 Round w/ 2 Round Mag Extension, 17 Rounds by Steve, Verified Owner, August 15, 2025
Great magazine. Fits my G43X extremly well. No problems with cycling or releasing the mag.
Most Recent Reviews Shield Arms Mag by Steve, Verified Owner, July 31, 2025
Excellent magazine. It fits as good as the factory mag (maybe better) in my G43X. It's a great looking mag.
Read All 2 Reviews

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Prices have been cut drastically on this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts, but you'll still get the best deal out there. This offer won't last long, so don't miss out!
Gun Make: Glock Gun Model: Glock 43X , Glock 48 Caliber: 9mm Luger Magazine Capacity: 17 Round

Code: 3T1-PMG-GHT17R-SLDS15ME2INSG3BLK-17RD

MPN: S15-ME-2INS-G3-BLK

Blazin' Deal
List: $68.99Save $2.60
$66.39

Certain firearm magazines and extensions are subject to maximum capacity restrictions based on state and local laws. Currently, we are unable to sell these products to some locations. For a complete list of these restrictions, please visit our policy page.

By continuing with your purchase, you agree to adhere to all applicable laws and regulations.  

Product Info for Shield Arms S15 Gen 3 Glock 43X/48 15 Round w/ 2 Round Mag Extension Pistol Magazine

The S15 magazine is a Patented, flush-fitting 15 round magazine for the Glock 43X and Glock 48. The S15 is a steel magazine, and is the same length as the OEM Glock 10 round magazine, but holds an additional 5 rounds.image

Glock pistols and magazines are known for reliability - the S15 maintains that same Glock reliability, while giving you a 50% increase in magazine capacity in the same overall footprint.

We accomplished this increased capacity with our patent-pending magazine geometry, allowing the rounds to stagger, thereby fitting more in the same amount of space.

Specifications for Shield Arms S15 Gen 3 Glock 43X/48 15 Round w/ 2 Round Mag Extension Pistol Magazine:

Manufacturer: Shield Arms
Gun Make: Glock
Gun Model: Glock 48, Glock 43X
Caliber: 9mm Luger
Magazine Capacity: 17 Round

Features of Shield Arms S15 Gen 3 Glock 43X/48 15 Round w/ 2 Round Mag Extension Pistol Magazine:

  • Unique easy access floor plate design to service or clean the magazine body without the need to remove the magazine extension from the magazine body.
  • Index cuts on the extension body to increase grip when coming out of a magazine pouch.
  • Machined from billet 6061 aluminum
  • Type 2 anodized
  • Adds 2 rounds to Shield Arms S15 Gen 3 Nitrocarb magazine 
  • Comes with a 11 coil plus power spring
  • Fits most aftermarket flared mag wells
  • Lifetime warranty

Package Contents:

  • Shield Arms S15 Gen 3 Glock 43X/48 15 Round w/ 2 Round Mag Extension Pistol Magazine

Shield Arms S15 Gen 3 Glock 43X/48 15 Round w/ 2 Round Mag Extension Pistol Magazine Orderable Models

List of Orderable Models

Shield Arms S15 Gen 3 Glock 48/43X 17 Round Flush 9mm Luger Pistol Magazine, SLDS15ME2INSG3BLK , MPN: S15-ME-2INS-G3-BLK , Code: 3T1-PMG-GHT17R-SLDS15ME2INSG3BLK-17RD
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