Glock 21 SF Gen 3 .45 ACP Full-Size Pistol, 4.61 in Barrel, 4x 13-Round Magazines, Austria
The Glock 21 SF Gen 3 combines .45 ACP power with the Short Frame grip for improved reach and control. This Austrian-made, full-size pistol features the Gen 3 frame with finger grooves, an integral multi-slot MIL-STD-1913 Picatinny rail, and fixed post/notch sights. It comes with four factory 13-round magazines and has matching serial numbers on the slide, barrel, and frame.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent - Strong, well-defined polygonal rifling (octagonal).
Specific Condition Details: This firearm is in great shape overall. It shows minor, superficial scratches and blemishes from prior handling.
What’s Included
- Glock factory hard case
- Four 13-round Glock factory .45 Auto polymer-body magazines
The SF (Short Frame) design shortens the trigger reach and grip circumference compared to the standard frame, offering a more accessible hold while retaining the Glock 21’s 13+1 capacity in .45 ACP. The Gen 3 frame includes finger grooves and the SF cartouche, with a non-ambidextrous, left-side magazine release.
The slide has rear serrations only and fixed iron sights with a front post and rear notch. The barrel measures 4.61 inches, is steel with a nitrided finish, and uses Glock’s octagonal polygonal rifling in .45 ACP.
An integral multi-slot MIL-STD-1913 Picatinny rail is molded into the dustcover for mounting compatible accessories. The Safe Action system provides Glock’s striker-fired operation with internal safeties.
Markings include "MADE IN AUSTRIA GLOCK, INC., SMYRNA, GA." The slide, barrel, and frame carry matching serial numbers, adding completeness to this example. The bore is clean and mirror-bright, consistent with the overall well-kept condition.