Glock Factory 15-Round Magazine (GL79269)

The Glock factory 15-round magazine (part number GL79269) is the OEM capacity upgrade for the Glock 43X and 48. It delivers the same 15+1 flush-fit capacity as the Shield Arms S15 without requiring an aftermarket steel magazine catch and without the reliability concerns that come with third-party defensive magazines.

Because it is a factory Glock product, it is a drop-in replacement for the OEM 10-round magazines that ship with the 43X and 48. Current launch coverage identifies a metal-body magazine that works with the existing factory polymer magazine catch, so no pistol modifications are required. For shooters who want 15 rounds in a slimline Glock without the S15 reliability debate, this is the defensive-grade answer.

Glock announced the factory 15-round magazines to ship in May 2026, directly responding to the aftermarket dominance of the Shield Arms S15. For defensive carry, this is now the first magazine to buy for a 43X or 48.