Glock G21 Gen5 MOS .45 ACP, USA-Made, Tan Frame, 4.61 in GMB Barrel, nDLC Finish, 10+1 with 3x 10-Round Magazines
This USA-made Glock G21 Gen5 MOS is a full-size .45 ACP with Glock Marksman Barrel, nDLC-treated slide and barrel, and a factory tan polymer frame. It includes the MOS optic interface with cover plate installed, ambidextrous slide-stop levers, and a reversible magazine catch. Three factory 10-round magazines are included.
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 Rifling - Sharp lands and grooves.
Specific Condition Details: Minimal markings from previous handling/use. Bore is bright and clean. Refer to pictures.
What's Included
- GLOCK factory hard case (with matching serial label)
- Owner's manual
- Three 10-round GLOCK factory polymer magazines for .45 Auto
The G21 Gen5 MOS combines Glock's .45 ACP capacity with Gen5 updates, including the Glock Marksman Barrel for conventional rifling and an nDLC finish on critical metal components. The full-size profile pairs a 4.61 in barrel with a robust slide built for duty-level use.
Controls are set up for versatility: ambidextrous slide-stop levers and a reversible magazine catch support left- or right-handed operation. The frame features Gen5 texturing with no finger grooves, a flared magwell for efficient reloads, and compatibility with the Modular Backstrap System.
Factory sights consist of a fixed polymer set with a white-dot front and white U-notch rear, delivering a 6.93 in sight radius. The slide is cut for the MOS optic interface, and the MOS cover plate is installed from the factory.
Capacity is 10+1 rounds of .45 ACP, and this pistol ships with three 10-round magazines. An accessory rail on the dust cover supports common weapon-mounted lights. This example is USA-made, and the frame, slide, and barrel carry matching serial numbers.