Glock G21 Gen4 .45 ACP, Full-Size, Gray Frame, 4.61 in Barrel, 13+1 Capacity, Austria-Made, Factory Case Included
This Glock G21 Gen4 stands out with its distributor-exclusive gray frame configuration and Austrian manufacture with matching import markings. It is a full-size .45 ACP pistol with a 4.61 in barrel and a 13+1 capacity, presented in excellent condition and accompanied by three factory magazines. The factory test-fired case envelope is dated 09/01/15, adding clear provenance to this Gen4 example.
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 - Distinct polygonal rifling surfaces.
Specific Condition Notes: Light handling marks are present on exterior surfaces and are minor. Photos are provided for reference.
What's Included
- Glock owner's manual and safety paperwork
- 3x 13-round Glock factory .45 Auto magazines
- Glock polymer magazine speed loader
- Factory test-fired case envelope
This Gen4 G21 features the gray-frame (GF) distributor-exclusive configuration paired with the Austrian-made slide, barrel, and frame. Markings include AUSTRIA on the slide, AT on the barrel hood, and MADE IN AUSTRIA on the frame, with the U.S. importer marking from Glock, Inc., Smyrna, GA. The factory part number is PG2150203GF.
The 4.61 in steel barrel is cold hammer-forged with octagonal polygonal rifling and a 1:15.75 in right-hand twist, optimized for .45 ACP. The Gen4 dual captive recoil-spring assembly is part of the platform’s updates, enhancing control and service life.
Controls and ergonomics reflect the Gen4 feature set: a reversible, enlarged magazine release and the Gen4 rough-texture frame with finger grooves. The Glock accessory rail is present for mounting compatible lights or other rail-mounted accessories. The Modular Backstrap System is part of the Gen4 design.
Sighting is via fixed polymer notch-and-post sights with a white dot front and white-outline U rear. The sight radius measures 6.77 in, supporting quick alignment on this full-size .45 ACP platform.
The pistol operates on Glock’s striker-fired Safe Action system with three passive safeties and carries a 13+1 capacity. It ships with three factory magazines, loader, and documentation, as well as the fired-case envelope dated 09/01/15. Factory box/case is included.