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 uses the standard polymer body and is a drop-in replacement for the OEM 10-round magazines that ship with the 43X and 48. No pistol modifications are required. The existing factory polymer magazine catch works as intended, and the factory warranty remains intact. 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.