Glock 43X MOS Slimline 9 mm Pistol — Optics-Ready, Custom Flat Trigger, 10+1 Capacity
The Glock 43X MOS pairs Glock’s proven Slimline ergonomics with a factory-cut RMSc footprint slide, giving you a micro-sized defensive pistol that accepts today’s most popular micro red-dot optics. This example stands out for its aftermarket flat-faced skeletonized trigger shoe, delivering a crisp 5.5-lb break while retaining Glock’s Safe Action reliability. With a thin single-stack frame, 10-round magazines, and the enhanced Glock Marksman Barrel, it offers an ideal balance of concealability, capacity, and shootability.
Condition
Overall Condition: Excellent — showing only faint signs of prior use or handling.
Bore Condition: Excellent — clean, mirror finish, no signs of wear.
Bore Rifling: Excellent — sharp lands and grooves (polygonal).
Specific Condition Notes: Only minimal handling marks are visible on the slide and frame; chamber and feed ramp remain bright and clean.
What’s Included
- Glock factory hard plastic pistol case
- Owner's manual
- Optic adapter plate
- Glock polymer magazine loader
- 3 × 10-round Glock Slimline 9 mm magazines with orange followers
Built on Glock’s Slimline frame, the 43X MOS is just over an inch wide yet carries 10 + 1 rounds of 9 mm Luger, making it highly concealable without sacrificing capacity.
The factory-milled slide features front and rear serrations plus a Shield RMSc-pattern optics cut, letting you add a micro red-dot sight without aftermarket machining.
A 3.41-inch Glock Marksman Barrel with polygonal rifling promotes accuracy and durability while simplifying maintenance.
This pistol has been upgraded with a flat-faced, skeletonized trigger shoe that shortens perceived travel and offers a more consistent finger placement while keeping the Safe Action 3-lever system intact.
Additional user-friendly touches include a reversible magazine release, fixed polymer sights with a white-dot front and white-outline U-notch rear, and a Slimline accessory rail for proprietary weapon lights.