Shield Arms S15 Glock 43X/48 Mag Gen3

The S15 magazine is a patent-pending, 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.

Powercron finish.

Since the S15 magazine is all steel, the replacement of the stock polymer magazine catch with a steel magazine catch is highly recommended.

This Gen 3 version has the following improvements over the Gen 2:

• New US-based manufacturer.
• Raised ribs on the back of the magazine allow us to fully match the OEM magazine position in the mag well. This 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, and now comes with a new black nitrocarburized QPQ finish.