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. What changed with the gen 3 magazine? We made the following improvements: US-based manufacturer. Modular tooling. Raised ribs on the back of the magazine allows these 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 - new steel is slightly thicker, tougher, and now comes with a new standard black nitrocarburized QPQ finish for a high degree of corrosion resistance

Brand	Shield Arms
Category	Magazines
Series	Gen 3
Model	S15 Magazine
Caliber	9mm Luger
Firearm Fit	Glock 43X
Capacity	15rd
Color	Black
Material	Steel
Style	Flush
Includes	Magazine Release