Glock 43X MOS Slimline 9mm with threaded match barrel, ATEI compensator, fiber-optic iron sights, and Empire flared magwell
This Glock 43X MOS is a slim, micro-size 9mm with meaningful upgrades and matching parts. It features an aftermarket stainless-finish threaded match barrel with an ATEI-marked compensator, hand-stippled grip surfaces, an Empire aluminum flared magwell, and fiber-optic iron sights. It comes with both OEM 10-round magazines and Shield Arms S15 Gen-3 15-round steel magazines, plus the original non-threaded Glock barrel, making it a complete, optic-ready package.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Blemishing is present on exterior surfaces. Custom modifications are installed.
What’s Included
- Glock factory clamshell case (G43X label)
- Aftermarket threaded match barrel (installed)
- ATEI-marked compensator (installed)
- Empire aluminum flared magwell (installed)
- Fiber-optic front sight with serrated rear (installed)
- Glock OEM 9mm G43X barrel, non-threaded (not installed)
- 3 OEM 10-round slim magazines (orange followers)
- 2 Shield Arms S15 Gen-3 15-round steel magazines
The 43X MOS platform delivers a slim, micro footprint with Glock’s nDLC-finished slide, forward and rear serrations, and an MOS optic cut. The included cover plate is engraved with an X, and the frame retains the reversible magazine release and Safe Action system.
Custom work sets this pistol apart: a stainless-finish threaded match barrel is paired with an ATEI-marked compensator. The frame and grip surfaces are hand-stippled for added texture, and an Empire aluminum flared magwell is installed.
Sight picture is straightforward and bright with a red fiber-optic front sight and a serrated square-notch rear. The slide remains optic-ready via the MOS cut should you choose to mount a compatible optic.
Capacity is 10+1 with the OEM slim magazines and 15+1 with the included Shield Arms S15 steel magazines. The pistol is Austrian-made and imported by Glock, Inc., Smyrna, GA, and it includes the spare OEM non-threaded barrel. Matching serial markings are present on the slide, frame, and underside plate.