Glock G21SF Gen 3 .45 ACP Full-Size Semi-Auto Pistol, Austrian-Made, Fixed Sights, 10+1, Two 10-Round Mags
This Glock G21SF Gen 3 is the Short Frame variant of the full-size .45 ACP pistol, featuring a reduced grip circumference for improved reach and control. It is Austrian-made with factory proof marks and includes matching serials on the slide, barrel, and frame. The pistol comes with two 10-round magazines and a Glock factory case with a matching serial label, and the model has been listed as discontinued for general civilian sale in some regions.
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.
Specific Condition Notes: There are very minor, superficial scratches and blemishes present.
What’s Included
- Glock factory hard case with matching serial label BXAB223
- 2 Glock factory 10-round .45 Auto magazines
The SF (Short Frame) configuration reduces the grip circumference while retaining the G21’s full-size dimensions and .45 ACP capacity. The standard right-hand magazine catch and Gen 3 frame with finger grooves and pebble-textured panels provide a familiar, secure hold.
Dimensions are practical and well-balanced for a duty-size .45: 4.6 in barrel, 8.07 in overall length, 5.51 in height, and 1.34 in width. Unloaded weight is 26.1 oz (no magazine). The fixed sights use a white-dot front and white-outline U-notch rear with a 6.77 in sight radius.
The pistol uses Glock’s Safe Action system and a striker-fired, short-recoil, locked-breech, tilting barrel design. The steel barrel employs polygonal rifling, and the slide has rear-only vertical serrations for consistent manipulation. A Glock Universal rail with a single cross-slot is integrated into the dust cover for mounting compatible accessories.
Manufactured in Austria, this example carries factory markings: “Made in Austria,” “Glock, Inc., Smyrna, GA,” and an “AT” barrel hood mark with proof stamps. The slide, barrel, and frame share matching serials, and the included factory case is labeled to match. The G21SF Gen 3 has been noted as discontinued for general civilian sale in some regions.