Glock G34 Gen5 MOS FS 9mm Long Slide, 5.31 in Barrel, nDLC, GMB, Adjustable Sights, 17+1
This Glock G34 Gen5 MOS FS is a full-size, long-slide 9mm built with competition in mind. It features a 5.31 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 ambidextrous slide stop levers, no finger grooves, a flared magwell, and refined grip texturing. It comes with two 17-round magazines, Glock MOS adapter plates, and an installed Edgar Sherman Design magwell.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Well-defined polygonal rifling.
Specific Condition Notes: This pistol shows minimal use.
What’s Included
- Two 17-round Glock OEM 9mm double-stack polymer magazines
- Glock MOS Adapter-Set 01 nDLC with adapter plates and screws
- Edgar Sherman Design (ESD) magwell (installed)
- Glock factory hard case
- Glock interchangeable backstraps
The G34 Gen5 MOS FS pairs a 5.31 in barrel with a long slide to deliver a competition-oriented 9mm platform with a stated 17+1 capacity and an overall length of 8.74 in. The frame uses Gen5 texturing and deletes finger grooves for a consistent, comfortable grip on a full-size profile.
The Glock Marksman Barrel is cold hammer-forged with enhanced polygonal rifling and an improved crown. This setup is designed for durability and consistent performance with modern 9mm loads.
The slide wears a durable nDLC finish and includes both front and rear serrations. It is MOS-cut with the cover plate installed and retains a solid top (no window). The included Glock MOS Adapter-Set 01 adds plate options for mounting compatible optics.
Controls and features include ambidextrous slide stop levers, the Safe Action system with three passive safeties, and a trigger safety tab. The pistol is equipped with an adjustable rear sight and a white-dot front sight, and the frame integrates an accessory rail. This Austrian-made example carries the appropriate import markings.
This pistol also includes an Edgar Sherman Design magwell installed, complementing the Gen5 flared magwell for efficient reloads. Two Glock OEM 17-round magazines, Glock interchangeable backstraps, and the factory hard case round out the package.



