Glock G43X MOS

About the Glock G43X MOS

The Glock G43X MOS is a semi-automatic pistol chambered in 9x19mm Parabellum, produced by Glock Ges.m.b.H. since 2021. This Austrian-manufactured firearm reflects the engineering traditions and quality standards of its country of origin, designed to meet the demands of both civilian and professional users in a competitive global marketplace. Featuring a 10-round magazine capacity, this pistol offers adequate firepower for defensive carry. The striker-fired action provides a consistent trigger pull for every shot, simplifying training and reducing the manual of arms - a design philosophy that has become the dominant paradigm in modern defensive handguns. With a 3.4-inch barrel, this firearm prioritizes concealability for everyday carry while still delivering adequate ballistic performance at defensive distances. At 532g (18.8 oz) unloaded, this lightweight firearm is optimized for comfortable all-day carry without creating undue fatigue or printing concerns. The polymer frame construction reduces weight while providing a textured, ergonomic grip surface designed for secure handling in all conditions. This firearm represents its manufacturer's commitment to delivering a well-engineered, reliable product that serves the needs of discerning shooters seeking quality, accuracy, and dependable performance from a proven platform.

The G43X MOS answered the single biggest complaint about the original G43X: the lack of a factory optic cut. When Glock finally added the MOS slide and slim rail to the G43X, the aftermarket response was immediate -- Shield Arms S15 magazines paired with a Holosun 507K red dot became the most popular concealed carry combination in America. The G43X MOS with S15 magazines offered 15+1 rounds of 9mm with a red dot optic in a package slimmer than the Glock 19, fundamentally changing what concealed carriers expected from a carry gun.

Glock G43X MOS specifications

The G43X MOS optic cut uses the Shield RMSc pattern, which is narrower than the full-size RMR cut used on standard-frame Glock MOS models. This accommodates micro-compact red dots designed for slim-profile slides. The slim mounting rail accepts compact weapon-mounted lights like the Streamlight TLR-7 Sub. With aftermarket Shield Arms S15 steel magazines, the G43X MOS achieves 15+1 capacity -- equaling the G19 -- in a package nearly a quarter-inch thinner and with a red dot optic. This combination has made the G43X MOS one of the most popular concealed carry setups in America.