Glock G34 Gen5 MOS FS 9mm Luger, Long Slide, nDLC Black, Glock Marksman Barrel, Custom Upgrades
This Glock G34 Gen5 MOS FS 9mm pairs the long-slide Gen5 platform with thoughtful upgrades. It features a 5.31 in Glock Marksman Barrel with enhanced polygonal rifling and an improved crown, an nDLC black finish, and a closed-top slide with front and rear serrations. Notable enhancements include an upgraded trigger, TG-H3-marked suppressor-height sights, an American flag optic cut cover plate, an external magazine-well funnel, and extended-basepad magazines providing a 21+1 capacity.
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 - Well-defined polygonal rifling.
Specific Condition Details: There are minimal markings from previous handling and use. Please refer to the pictures for a detailed view of the firearm.
What’s Included
- Glock factory hard case
- Glock owner's manual and safety literature
- OWB retention holster with locking hood (camo pattern)
- 5x 21-round Glock-branded 9mm magazines with extended base pads installed
- Suppressor-height iron sights marked TG-H3 (installed)
- Hogue HandALL rubber grip sleeve (installed)
- External magazine-well funnel (installed)
- Aftermarket trigger shoe/assembly (installed)
The G34 Gen5 MOS FS format delivers a 5.31 in barrel and 8.74 in overall length for a long-slide sight radius and smooth cycling. The Glock Marksman Barrel features enhanced polygonal rifling and an improved crown, and the slide carries Glock's durable nDLC finish. The slide is closed-top (no window) with front and rear serrations.
The MOS interface is present with a cover plate installed, and this example wears an American flag optic cut cover plate. Gen5 updates include ambidextrous slide-stop levers, and the Safe Action, striker-fired system retains Glock's familiar operating qualities. The polymer frame includes an accessory rail on the dust cover.
Upgrades include an aftermarket trigger shoe/assembly (upgraded trigger), TG-H3-marked suppressor-height front and rear sights, a Hogue HandALL rubber grip sleeve with finger grooves, and an external magazine-well funnel for guided reloads. These custom touches are installed and ready to use.
Five Glock-branded 9mm magazines are included, each fitted with extended base pads. Combined with the long-slide configuration, this setup yields a 21+1 capacity in 9mm Luger.
Made in Austria, this pistol shows Austrian proof marks and a GLOCK AT barrel hood marking alongside the standard 9x19 designation.




