Shield Arms S15 Starter Kit Gen3 — 15rd 9mm for Glock 43X/48

The Shield Arms S15 Starter Kit Gen3 provides a flush-fitting 15-round magazine intended for Glock 43X and Glock 48 platforms. The kit ships with one Gen3 S15 steel magazine finished in nitride and one black steel mag catch. The S15 retains the OEM flush length while increasing capacity compared with the standard 10-round Glock magazine. Gen3 improvements include manufacturing updates and raised rear ribs to better match OEM magazine position in the mag well.

Key Specifications

• The magazine capacity is 15 rounds.
• The cartridge specified is 9mm.
• The magazine body is constructed from steel with a nitride finish.
• Designed to fit Glock 43X and Glock 48 pistols.
• Kit contents include 1 Gen3 S15 magazine and 1 steel mag catch.
• The S15 shares the OEM flush length yet holds an additional 5 rounds over the factory 10-round magazine.
• The provided mag catch is finished in black nitride and constructed from steel.
• The listed product weight is 0.18 (as provided in product data).
• The model designation is S15 Magazine (Gen3).

This starter kit is intended for owners seeking a reliable, flush-fitting capacity upgrade for Glock 43X/48 platforms. The Gen3 S15 magazine paired with a steel mag catch emphasizes durable materials and engineered fit for consistent operation in everyday carry and range applications.