Glock G45 Gen5 MOS 9mm Luger, 4.02 in GMB, nDLC Slide, Crossover 17+1
This Austrian-made Glock G45 Gen5 MOS pairs a compact-length slide with a full-size grip for a 17+1 capacity in a crossover configuration. It features the 4.02 in Glock Marksman Barrel, an nDLC-finished slide with front and rear serrations, and the MOS interface with the cover plate installed. Gen5 updates include no finger grooves, a flared magwell, and ambidextrous slide stop levers, with fixed white-outline sights and Glock’s Safe Action system.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good - Intact, well-defined rifling consistent with the Glock Marksman Barrel.
Specific Condition Notes: There are scratches on the polymer frame near the magazine release. The bore is clean and bright.
What’s Included
- Glock factory hard case
- Glock owner’s manual and safety instructions
- 1x 17-round factory Glock 9mm double-stack magazine
- Two additional Glock Modular Backstrap System grip inserts (not installed)
The G45’s crossover layout delivers the compact-length slide and full-size frame combination, marked on the slide as "GLOCK 45 AUSTRIA 9x19." Capacity is 17+1 with the included factory double-stack magazine, and the black polymer frame uses Glock’s interchangeable backstrap system for fit customization.
The Gen5 feature set is fully present: no finger grooves on the grip, a flared magwell for efficient reloads, and ambidextrous slide stop levers. The steel slide wears Glock’s nDLC black finish and includes both front and rear serrations for positive manipulation.
This Gen5 MOS configuration provides the MOS optic interface with the cover plate installed from the factory. Sights are fixed, with a white-dot front and white-outline U-notch rear, and the dustcover includes an accessory rail for compatible lights or accessories.
The 4.02 in Glock Marksman Barrel (GMB) and Glock’s Safe Action system with three automatic safeties are paired with a 5.5 trigger weight. The barrel hood is marked "9x19," with the Glock logo, "AT," and a circled "5," underscoring its Austrian origin and proofing.




