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Customer Reviews
Helpful Positive Review
Works Perfect by Nickoad55, March 1, 2025
0 failures so far. The trick is to break in the follower spring by loading them and letting them sit. Once the spring is adequately broken in, I had 0 failure to feeds and 0 failure to extracts. All the issues you see are only seen fresh out of the b...
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2/4 found this helpful
Helpful Positive Review
S15 Magazine Gen 3 15rd Flush 9mm by Steve, Verified Owner, December 27, 2025
Third time purchasing for my thired G43X! Works extremely well and it's great to have the extra capacity.
1/1 found this helpful
Helpful Positive Review
What's better than 10rds. . .15rds! by Aaron, Verified Owner, September 17, 2025
If you decide to get these mags, you'll have to install the mag-catch to go with them. Afterwards, the original Glock mags won't come loose easily, but it's still worth it if you buy 3+ of these for personal carry & range practice.
1/2 found this helpful
Helpful Negative Review
Started out with the Gen 1 magazines, and the first range trip was good. The second one was a disaster. Found out the springs they were using weren't strong enough, so I upgraded those. That seemed to fix that problem but then started to have problem...
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1/2 found this helpful
Most Recent Reviews
15 rd magazine for a Glock 43X by RaLor1, Verified Owner, September 24, 2026
Hard to find item. Optics Planet had in stock. Tested magazine and it fits and works great.
Most Recent Reviews
Doesn’t feed by Michael Sanchez, Verified Owner, July 26, 2026
I bought 3 of this mags to replace my 2 10 rounds from Glock. What a mistake, this 15 rounds doesn’t feed at all, unfortunately it started happening after my return window expire. I bought the new Glock 15 round mag and it work perfectly. So please d...
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Read All 20 Reviews
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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 48/43X 15 Round Flush 9mm Luger Pistol Magazine

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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.

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.

What changed with the gen 3 magazine? We made the following improvements:

  • New US-based manufacturer
  • Modular tooling, allowing us to make the S15 and S10 magazines simultaneously 
  • Raised ribs on the back of the magazine allows us to fully match the OEM magazine position in the mag well, which should eliminate any tolerance stacking that results from Glock frame variations
  • New steel, new coating, new heat treat process - our new steel is slightly thicker, tougher, and now comes with a new standard black nitrocarburized QPQ finish for a high degree of corrosion resistance
WARNING: California`s Proposition 65

Specifications for Shield Arms S15 Gen 3 Glock 48/43X 15 Round Flush 9mm Luger Pistol Magazine:

Manufacturer: Shield Arms
Fabric/Material: Stainless Steel
Gun Make: Glock
Gun Model: Glock 48, Glock 43X
Caliber: 9mm Luger
Magazine Capacity: 15 Round
Condition: New

Package Contents:

  • Shield Arms S15 Gen 3 Glock 48/43X 15 Round Flush 9mm Luger Pistol Magazine

Shield Arms S15 Gen 3 Glock 48/43X 15 Round Flush 9mm Luger Pistol Magazine Orderable Models

List of Orderable Models

  • Shield Arms S15 Gen 3 Glock 48/43X 9mm Luger Nickel Pistol Magazine, 15 Round Flush, Nickel, 1 Pack, Steel, SAS15NGEN3-15RD , MPN: SA-S15-N-GEN3 , UPC: 850029545309 , Code: 3T1-PMG-GHT479-SAS15NGEN3-15RD
  • Shield Arms S15 Gen 3 Glock 48/43X 9mm Luger Pistol Magazine, 15 Round Flush, Black, 1 Pack, Steel, SAS15NCGEN3-15RD , MPN: SA-S15-NC-GEN3 , UPC: 850029544999 , Code: 3T1-PMG-GHT479-SAS15NCGEN3-15RD
  • Shield Arms S15 Gen 3 Glock 48/43X 9mm Luger Pistol Magazine, 15 Round Flush, Black Nickel, 1 Pack, Steel, SAS15BLKNGEN3-15RD , MPN: SA-S15-BLKN-GEN3 , UPC: 850029545316 , Code: 3T1-PMG-GHT479-SAS15BLKNGEN3-15RD

Shield Arms S15 Gen 3 Glock 48/43X 15 Round Flush 9mm Luger Pistol Magazine Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Shield Arms S15 Gen 3 Glock 48/43X 9mm Luger Nickel Pistol Magazine, 15 Round Flush, Nickel, 1 Pack, Steel, SAS15NGEN3-15RD , MPN: SA-S15-N-GEN3-EDEMO , Code: 3T1-PMG-GHT479-SAS15NGEN3-15RD-EDEMO-RE-A
  • USED, Shield Arms S15 Gen 3 Glock 48/43X 9mm Luger Pistol Magazine, 15 Round Flush, Black Nickel, 1 Pack, Steel, SAS15BLKNGEN3-15RD , MPN: SA-S15-BLKN-GEN3-EDEMO , Code: 3T1-PMG-GHT479-SAS15BLKNGEN3-15RD-EDEMO-RE-C
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Last updated 2026-10-07 UTC.