Glock G34 Gen4 MOS 9mm Long Slide with ZEV Threaded Barrel, Flared Magwell, Adjustable Sights, and 3x 17-Round Magazines
This Glock G34 Gen4 MOS pairs the long-slide 9mm platform with targeted upgrades and clean condition. It features a factory MOS-cut slide with forward lightening window and adjustable iron sights, plus a ZEV threaded stainless barrel and ZEV flared magwell already installed. Austrian-made with Smyrna, GA import marks, it includes three 17-round magazines and the original Glock hard case.
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.
Rifling: Excellent - Sharp lands and grooves.
Specific Condition Notes: Minimal markings from previous handling and use. The slide's optic cut cover plate is not present. The bore is bright and clean.
What’s Included
- Glock factory hard case
- Glock owner's manual
- OWB Kydex holster marked "G34/35"
- Glock Gen4 interchangeable backstraps (spares)
- Cable lock
- Optic adapter plate spacer
- ZEV threaded stainless barrel with thread protector (installed)
- ZEV flared magazine well (installed)
- 3x 17-round Glock factory polymer magazines marked "9mm"
Built on Glock's full-size, long-slide competition profile, this G34 Gen4 MOS delivers a 5.8-inch barrel length and a factory MOS-cut slide. The slide includes a forward lightening window and adjustable rear/white-dot front sights for a clean, practical sight picture. The frame carries the Gen4 textured grip with finger grooves and the modular backstrap system.
Upgraded components stand out: a ZEV-branded threaded stainless steel barrel with fluted and dimpled machining and a knurled thread protector, a ZEV flared magazine well for faster reloads, and an upgraded red/black trigger shoe. A custom rear slide cover plate with a stylized U.S. flag is also installed.
Controls are set up for versatility with a reversible magazine catch and Glock's Safe Action system. The Glock Universal accessory rail supports common lights or lasers, and the MOS-cut slide accommodates optic mounting solutions; an optic adapter plate spacer is included.
Capacity is 17+1, and three factory 17-round magazines are included. Origin markings read "MADE IN AUSTRIA GLOCK, INC., SMYRNA, GA," confirming Austrian manufacture with U.S. import marks.




