The Glock 43X MOS (brand part no. UX4350203FRMOS) is a 9mm pistol pairing a compact-size grip length with a subcompact-slim slide, giving shooters an easy-to-conceal platform with a full-size-feeling grip. Glock precision-machines the MOS slide to accept popular red dot optics via separately sold adapter plates, and the serrated, corrosion-resistant slide sits on a polymer frame with an accessory rail and beavertail. Three independent safeties disengage sequentially as the trigger is pulled and re-engage the instant it’s released, and the extractor doubles as a loaded chamber indicator. The pistol ships with two 15-round magazines, a magazine loader, cleaning kit, pistol case, and gun lock. Among semi-auto handguns, this 43X MOS favors shooters who want a slim, optics-ready 9mm for daily carry.

Key Specifications

• The chambering is 9mm Luger.
• The barrel measures 3.41 inches.
• The magazine capacity is 15+1, with two magazines included.
• The slide is MOS-cut and serrated for optic mounting (adapter plates sold separately).
• The frame is black polymer with an accessory rail and beavertail.
• The barrel finish is black.
• Sighted with fixed Glock sights.
• The safety is a firing pin/trigger block system with three independent safeties.
• Includes a magazine loader, cleaning kit, pistol case, and gun lock.

Frequently Asked Questions

Does the MOS slide come with an optic adapter plate? No, the G43X MOS ships slide-ready but adapter plates for mounting a red dot are sold separately.

How many magazines are included? Two 15-round magazines, along with a magazine loader.

Buy the Glock 43X MOS Pistol

A slim, optics-ready 9mm built for daily carry is exactly what this 43X MOS delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.