Glock G20 Gen5 MOS 10mm Auto, Full-Size, 4.61 in GMB Barrel, nDLC Slide, Timney Trigger, 3x 15-Round Mags
This Glock G20 Gen5 MOS stands out with its as-new presentation, factory MOS optics-cut slide, and an installed Timney flat-faced trigger with a red safety blade. It includes three 15-round magazines and both the original guide rod and an additional stainless steel recoil spring/guide-rod assembly. Austrian proof marks and the GLOCK AT barrel hood marking confirm its Austrian manufacture.
Condition
Overall Condition: As-new condition with no signs of prior handling beyond what’s typical from inspection (see photos).
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The pistol appears almost unused with no noticeable handling wear visible in the provided photos.
What’s Included
- Glock factory hard case
- Three 15-round Glock 10mm Auto magazines
- CHPWS Glock MOS optics mounting plate for Trijicon RMR/SRO
- Original guide rod
- Stainless steel recoil spring/guide-rod assembly
- Interchangeable backstraps (Glock Modular Backstrap System)
- Glock magazine speed loader
The G20 Gen5 MOS is a full-size 10mm Auto with a 4.61 in Glock Marksman Barrel for precise conventional rifling and a durable nDLC black slide. Front and rear slide serrations aid manipulation, and fixed Glock polymer sights feature a white dot front and white U-notch rear.
Gen5 updates include an ambidextrous slide stop lever, a reversible magazine catch, and a flared magwell. The frame is black polymer with an accessory rail and accepts the included modular backstraps.
The slide is factory cut for the Modular Optic System and ships with a MOS cover plate. This pistol also includes a CHPWS MOS plate sized for Trijicon RMR/SRO footprints, providing a ready path for mounting those optics if desired.
Customization is highlighted by the installed Timney flat-faced trigger with a red safety blade. For recoil system options, it comes with the original guide rod plus a stainless steel recoil spring/guide-rod assembly. Austrian proof marks on the slide and the GLOCK AT marking on the barrel hood indicate Austrian origin.



