Glock G20 Gen5 MOS 10mm Auto Full-Size Pistol — 4.61 in Barrel, nDLC Finish, 3x 15-Rd Mags, Streamlight TLR-7A, Factory Case
This Glock G20 Gen5 MOS stands out as a full-size 10mm Auto with the Gen5 feature set, a durable nDLC finish on the slide and barrel, and an optics-cut slide with the MOS cover plate installed. It comes complete with three 15-round factory magazines, a factory hard case, the owner's manual, and an installed Streamlight TLR-7A weapon light. Austrian manufacture and proof marks add clear provenance.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are minimal markings from previous handling and use. The bore is bright and clean. Please refer to the photos for a detailed view.
What’s Included
- GLOCK factory hard case
- Three 15-round GLOCK factory polymer magazines (10mm Auto)
- Owner's manual
- Streamlight TLR-7A weapon light (installed)
The G20 Gen5 MOS pairs the 10mm Auto chambering with a 4.61 in steel barrel and a 15+1 capacity, offering the Gen5 trigger with the GLOCK Safe Action system. The nDLC treatment on both slide and barrel provides a uniform, hard-wearing finish.
Gen5 updates include ambidextrous slide-stop levers, a flared magwell, the Gen5 frame texture with no finger grooves, and front and rear slide serrations. The beveled slide nose aids holstering, and the full-size polymer frame integrates an accessory rail.
The slide is cut for the Modular Optic System, and this example has the MOS cover plate installed. Fixed iron sights are fitted, with a white-dot front for a clear reference.
Manufactured in Austria, it bears Austrian proof marks along with "MADE IN AUSTRIA" and "GLOCK, INC., SMYRNA, GA" import markings. It is identified by Glock's mfg part number PA205S203MOS. Magazines are factory 10mm units, noted with baseplate code 1422-02.

