Glock G21 Gen4 .45 ACP, USA-Made, 4.61 in Barrel, 13+1, 3 Mags, Rail, Olight PL-3R
This USA-manufactured Glock G21 Gen4 is a full-size .45 ACP with a 4.61-inch barrel and a 13+1 capacity. It features Gen4 updates, fixed polymer sights, and a matte black finish. It comes well-equipped with three factory magazines, interchangeable backstraps, a Glock factory case, and an Olight PL-3R Valkyrie weapon light installed on the accessory rail.
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 - Distinct polygonal rifling.
Specific Condition Notes: This pistol shows minimal markings from prior handling and use. Please review the photos for a detailed view of the current condition.
What’s Included
- Olight PL-3R Valkyrie weapon light (installed on rail)
- 3 Glock factory 13-round .45 Auto magazines
- Glock Gen4 interchangeable backstraps (Medium and Large)
- Glock factory hard case
- Polymer holster
- Cable lock
This G21 Gen4 is a USA-made example, with the slide marked "USA" and the frame marked "GLOCK, INC., SMYRNA, GA." It also bears the pentagon "P" proof mark. The pistol is chambered in .45 ACP; any prior reference to .410 Bore/.45 Colt was incorrect.
Gen4 enhancements include the RTF grip texture with finger grooves, a modular backstrap interface (Medium and Large backstraps included), and an enlarged, reversible magazine catch. The dual recoil spring assembly supports the .45 ACP operating system while maintaining the familiar striker-fired action with trigger, firing pin, and drop safeties.
The 4.61-inch barrel uses right-hand polygonal rifling with an approximate 1:15.75 twist. Sights are the standard fixed polymer notch-and-post set, with a white-dot front and white-outline rear for clear indexing. The matte black finish on the slide and frame presents a clean, uniform look.
An accessory rail is integrated into the frame, and this pistol includes an Olight PL-3R Valkyrie weapon light already installed. Rounding out the package are three factory 13-round magazines, the Glock factory case, interchangeable backstraps, a polymer holster, and a cable lock.