The Glock 34 Gen 5 MOS is a long-slide variant engineered for competition and precision work, combining an extended sight radius with serviceable ergonomics. The Gen 5 updates remove finger grooves, add ambidextrous slide stop features, and standardize frame texture to improve consistent hand placement and repeatable acquisition in rapid-fire scenarios.

This example is built around a 5.3 in barrel and Glock Marksman Barrel geometry for improved bore concentricity and crown consistency. The MOS modular optic system provides a removable optics interface on the slide for a range of micro-reflex footprints. Controls include the Safe Action striker system, reversible magazine catch, and the Gen 5 slide stop arrangement; sights are adjustable target-style to exploit the extended sight radius. 

Specifications

• Manufacturer: Glock

• Model: G34 Gen 5 MOS

• Caliber: 9×19mm

• Barrel Length: 5.3 in

• Action: Striker-fired

• Frame: Gen 5 Polymer with HandleItGrips tape

• Finish: nDLC

• Trigger: Gen 5 striker system

• Sights: Adjustable target sights

• Optic Cut: MOS cut

• Controls: Reversible magazine catch, ambidextrous slide stop features

• Magazines: One 17-round magazines