Glock 21 Gen3 .45 ACP Full-Size Pistol, Austrian-Made, 4.61 in Barrel, 13+1 Capacity
This Austrian-made Glock 21 Gen3 is a full-size .45 ACP with a 4.61 in barrel, a nitrocarburized (Tenifer-type) slide finish, and an integral single-slot accessory rail. It uses Glock's octagonal polygonal rifling for .45 Auto barrels and features the Gen3 extractor that serves as a loaded-chamber indicator. Notably, the slide and barrel serial numbers do not match the frame, indicating a parts swap.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Polygonal rifling intact with a well-defined octagonal profile.
Specific Condition Notes: The pistol is in solid shape with various cosmetic imperfections, including scratches, blemishes, and areas of finish loss. The bore remains clean and shiny.
What’s Included
- Glock 21 Gen3 .45 ACP pistol
- 1x 13-round polymer-bodied double-stack magazine with rear witness holes
The Gen3 frame provides frontstrap finger grooves and molded thumb-rest indents, plus two transverse frame pins above the trigger. The slide has rear-only vertical cocking serrations and ejects to the right. An integral accessory rail with a single cross-slot is built into the dust cover.
The 4.61 in steel barrel uses Glock's octagonal polygonal rifling specific to .45 ACP, pairing durability with the G21's full-size format and 13+1 capacity. The slide receives a nitrocarburized (Tenifer-type) finish.
Controls and operation follow Glock's striker-fired Safe Action system with a trigger safety lever. The Gen3 extractor functions as a loaded-chamber indicator. Fixed sights are installed, with a white-dot front sight.
This example is Austrian-made and bears the "MADE IN AUSTRIA • GLOCK, INC., SMYRNA, GA." marking. The slide and barrel serial numbers do not match the frame, reflecting a parts swap noted in the item details.

