Glock G20 Gen5 MOS 10mm Full-Size Optics-Ready Pistol – 15+1 Capacity, 4.61" Glock Marksman Barrel
The Glock G20 Gen5 MOS is the first 10 mm Auto pistol to receive the full Gen5 treatment, combining Glock’s proven large-frame power with an optics-ready slide, improved ergonomics, and the revised Glock Marksman Barrel. Factory front serrations, nDLC slide finish, and ambidextrous controls make this hard-hitting sidearm notable for both duty use and backcountry defense.
Condition
Overall Condition: Excellent – showing only faint signs of prior handling.
Bore Condition: Excellent – bright, mirror-like interior with no visible wear.
Rifling Condition: Excellent – crisp polygonal rifling with well-defined surfaces.
What’s Included
- 3 × 15-round Glock 10 mm magazines with high-visibility orange followers
- Glock MOS adapter plate for optic mounting
- Glock Modular Backstrap Set (interchangeable grip inserts)
- Glock magazine loader (part 5173-1)
- Glock factory hard case
Introduced in January 2023, the Gen5 version of the G20 brings Glock’s latest enhancements—such as the flared mag-well, ambidextrous slide-stop lever, and refined Gen5 grip texture—to the 10 mm platform. These updates improve reload speed, left- or right-hand usability, and overall handling without altering the familiar large-frame profile.
The factory-milled MOS slide accepts popular red-dot footprints via the included adapter plate. Combined with forward slide serrations and a durable nDLC matte-black finish, the G20 Gen5 MOS is ready for optics and resists corrosion in harsh environments.
At the heart is a 4.61" Glock Marksman Barrel made from carbon steel with a recessed crown and enhanced polygonal rifling for consistent accuracy and simplified maintenance. The 5.5-lb Safe Action trigger system delivers the consistent striker-fired break Glock users expect.
Polymer fixed sights (white-dot front, white U-notch rear) provide an ample 6.93" sight radius when running irons, and a reversible magazine release accommodates either hand. Austrian and U.S. proof marks verify factory quality control.
With 15 + 1 rounds of 10 mm on tap and an optics-ready slide from the factory, the Glock G20 Gen5 MOS offers a balanced mix of capacity, power, and modern features for hunters, bear-country hikers, and shooters who prefer the authority of 10 mm Auto.