Glock G43X Slimline MOS 9mm – Optic-Ready, 10-Round Concealed Carry Pistol
The Glock 43X Slimline MOS pairs Glock’s proven reliability with a trimmer profile and factory optic cut, giving concealed carriers a 10-round capacity without extra bulk. This Austrian-made striker-fired pistol features the Glock Marksman Barrel, reversible magazine catch, and Gen5 internal upgrades in a slim, 3.41-inch-barrel package.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling – Sharp lands and grooves.
What’s Included
- Factory Glock hard case (black)
- Three 10-round Glock single-stack magazines with orange followers
- Factory fixed polymer sights (white-dot front, white-outline rear)
This 43X MOS variant ships with Glock’s Modular Optic System slide, pre-cut for Shield RMSc-footprint micro red-dot sights. The low-profile cover plate stays in place until you’re ready to add an optic, preserving a snag-free silhouette.
The slim polymer frame balances comfortably in the hand while housing 10-round magazines unique to the Slimline series. A reversible magazine catch accommodates left- or right-handed shooters without tools.
Inside the nDLC-coated slide, the Glock Marksman Barrel uses polygonal rifling and a target crown for enhanced consistency and easier maintenance. Combined with Gen5-style internals, the 43X MOS delivers the crisp, predictable trigger break Glock shooters expect.
Rear cocking serrations offer positive purchase for press checks and manipulations. Fixed polymer sights provide a clear white-dot/white-outline sight picture that co-witnesses with many micro optics.
Introduced in 2020, the G43X Slimline MOS remains a modern option for discreet carry, offering full-size grip comfort, 10+1 capacity, and ready-to-mount optics capability straight from the factory.