Glock G34 Gen5 MOS 9mm, Long-Slide 5.31 in Barrel, USA‑Made, Adjustable Sights, 17+1 Capacity
This Glock G34 Gen5 MOS USA is a full-size, long-slide 9mm built around a 5.31-inch Glock Marksman Barrel and an optics-mounting slide with the factory MOS cover plate installed. It features adjustable sights, ambidextrous slide stop levers, and the Gen5 grip design with a flared magwell. This USA-marked variant is made in Smyrna, GA and comes with four OEM magazines and a rechargeable rail-mounted light/green laser combo.
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 - Well-defined polygonal rifling consistent with the Glock Marksman Barrel profile.
Specific Condition Notes: This firearm is in great shape. The finish shows minor, superficial scratches and blemishes from light handling. The bore is clean and shiny.
What's Included
- 1x 17-round Glock factory double-stack 9mm magazine (polymer body)
- 3x 10-round Glock factory double-stack 9mm magazines (polymer bodies)
- Rechargeable rail-mounted weaponlight and green laser combo; USB charging cable
The G34 Gen5 MOS is a purpose-built long-slide model with a 5.31-inch barrel and a full-size frame, giving it a 17+1 capacity in 9mm Luger. This USA-marked variant is produced in Smyrna, Georgia, and carries the Gen5 feature set for duty and competition-oriented roles.
Its Glock Marksman Barrel uses enhanced polygonal rifling and a recessed crown in a non-threaded configuration. The bore presents a clean, mirror finish, aligning with the excellent condition noted.
The slide includes both front and rear serrations and arrives in factory MOS configuration with the cover plate installed. Sights are set up with an adjustable rear and a white-dot front, providing a clear, conventional sight picture.
Ergonomics and controls reflect the Gen5 pattern: no finger grooves, aggressive grip texturing, a flared magwell, and ambidextrous slide stop levers. The polymer frame integrates an accessory rail, and the striker-fired Safe Action system is standard to this platform.