Glock G45 Gen5 MOS 9mm Luger, Black nDLC, Crossover Frame/Slide, GMB 4.02 in Barrel, Suppressor-Height Fiber-Optic Sights
This Glock G45 Gen5 MOS stands out as a crossover 9mm with a compact-length slide and full-size frame, finished in durable black nDLC and built with the Glock Marksman Barrel. It features aftermarket suppressor-height fiber-optic sights for a bright sight picture, plus Gen5 updates including ambidextrous slide-stop levers, a flared magwell, and the Modular Backstrap System. It is in excellent condition with matching serial numbers on the slide, barrel, and frame, and carries Austrian/CIP proof marks with the Glock Smyrna, GA import mark.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Shows minimal handling wear consistent with careful prior use.
What's Included
- Glock factory hard case
- Glock Modular Backstrap System interchangeable backstraps (shown)
- Suppressor-height fiber-optic iron sights (installed)
- 1x 17-round Glock factory polymer double-stack magazine
The G45 crossover configuration pairs a compact-length slide with a full-size frame, delivering a 17+1 capacity in a duty-ready format. The slide is marked "GLOCK 45 AUSTRIA 9x19" and finished in black nDLC for corrosion and wear resistance. Front and rear cocking serrations and a beveled muzzle aid manipulation and holstering.
The 4.02 in Glock Marksman Barrel uses enhanced polygonal rifling and a recessed crown for precise, consistent performance. The bore is clean with sharp rifling, and the sight radius measures approximately 6.18 in.
Aftermarket suppressor-height fiber-optic sights are installed, with a red fiber-optic front and two-dot green fiber-optic rear. This setup provides a bright, high sight picture compatible with taller profiles and keeps the focus on quick, repeatable alignment.
Gen5 updates include ambidextrous slide-stop levers, a reversible magazine release, a flared magwell for faster reloads, and the Modular Backstrap System to tailor grip fit. The Rough Textured Frame offers secure purchase, and the Glock accessory rail supports weapon-mounted lights.
This pistol is factory MOS-configured with the interface present and the cover plate installed. It bears Austrian/CIP proof marks and the "MADE IN AUSTRIA GLOCK, INC., SMYRNA, GA." import mark, with matching serial numbers on the slide, barrel, and frame.

