Glock G34 Gen5 MOS FS 9mm Long-Slide, 5.31 in GMB Barrel, nDLC, Johnny Glock Trigger Upgrade
This Glock G34 Gen5 MOS FS is a full-size, long-slide 9mm built for precision with a 5.31 inch Glock Marksman Barrel and nDLC slide finish. It is in excellent condition and features a professionally installed Johnny Glock trigger with a very short break, plus an aftermarket extended control lever in silver. The pistol retains its MOS optic interface with the cover plate installed, shows Austrian proof marks with Glock Smyrna import marking, and has matching serial numbers on the slide, barrel, and frame.
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 - Strong polygonal rifling.
Specific Condition Notes: Minor scratches and blemishes are present. The bore is clean and shiny.
What’s Included
- Glock factory hard case
- 1x 17-round magazine
- Glock beavertail backstrap set (Gen5)
- Glock pistol magazine loader
- Glock MOS Adapter-Set 01 nDLC (optic plates and hardware)
- Glock OEM trigger components (bagged)
- Manual
- Lock
The G34 Gen5 MOS FS pairs a long 5.31 inch Glock Marksman Barrel with polygonal rifling and an improved crown for enhanced consistency. The nDLC-finished slide includes both front and rear serrations, and this example uses the solid slide top without a lightening window.
The MOS interface is present with the cover plate installed, and the factory MOS adapter set and hardware are included. Ambidextrous slide-stop levers and an accessory rail on the dustcover provide modern control and mounting options.
This pistol is customized with a Johnny Glock trigger that delivers a very short break, along with an aftermarket extended control lever in silver. The original Glock OEM trigger components are included in a bag should you wish to restore factory configuration.
Gen5 ergonomics are here with the textured frame and no finger grooves. Sights are a white-dot front and black square-notch rear. It is striker-fired with Glock Safe Action safeties and ships with one 17-round factory magazine for a 17+1 capacity.
Origin and markings include Austrian proof marks on the barrel hood and a Glock, Inc., Smyrna, GA import mark. The slide, barrel, and frame have matching serial numbers, adding desirable continuity to this example.