Glock G34 Gen 3 9mm Long Slide, Ported Slide Window, Aftermarket Dot Sights, 3x 10-Round Mags, Case
This Glock G34 Gen 3 is a full-size 9mm long-slide model with the factory top lightening window (ported slide) and a 5.31 in barrel. It is upgraded with a bright green front dot and two-dot rear sight and comes with three 10-round Glock magazines, the factory case, manual, and speed loader. The slide is marked "GLOCK 34 AUSTRIA 9x19," and the barrel hood is marked "9x19."
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Details: Minimal markings from previous handling or use. Please refer to the photos.
What’s Included
- Glock factory hard case
- Glock pistol owner's manual
- Glock magazine speed loader
- Three 10-round Glock factory polymer magazines
- Installed non-factory sight set: bright green front dot with two-dot rear
The G34 Gen 3 configuration delivers a longer sight radius and a 5.31 in barrel in a full-size 9mm platform. The slide is marked "GLOCK 34 AUSTRIA 9x19," the barrel hood is marked "9x19," and the frame molding shows "GLOCK, INC., SMYRNA, GA." Overall length is approximately 8.74 in.
The long slide includes a factory top lightening window — a ported slide feature that reduces slide mass. This is a factory lightening cut, not a compensated "C" barrel.
Sight upgrades include a bright green front dot paired with a white two-dot rear, providing a clear front-focused sight picture. These non-factory sights are installed and ready to use.
The Gen 3 black polymer frame features finger grooves with checkered front and backstraps, an accessory rail, a left-side magazine release, and Glock's Safe Action striker-fired system.
This pistol is configured for a 10+1 capacity and comes with three 10-round Glock magazines, making it ready for range use out of the case.

