
| Brand | Glock |
| SKU | UUG21507M1 |
| UPC | OMF##411562156 |
| Grip | Polymer |
| Action | Semi-Automatic |
| Finish | Black |
| Sights | Night Sights |
| Weight | 29.28 ounces |
| Capacity | 13+1 |
| Grip Safety | No |
| Optic Ready | No |
| Barrel Length | 4.61 inches |
| Manual Safety | No |
| Overall Length | 8.07 inches |
| Trigger Safety | Yes |
| Caliber / Gauge | .45 ACP |
| Threaded Barrel | No |
| Magazines Included | 1 |
| Ambidextrous Safety | No |
| Condition | Very Good |
Firearms ship to the FFL dealer you name at checkout. Price and stock are re-checked live when you order.
The Glock 21 Gen4 is a full-size .45 ACP semi-automatic pistol built around Glock's durable polymer frame and Safe Action system. This police trade-in features factory Glock night sights, a 4.61-inch barrel, and a 13+1 capacity. Gen4 interchangeable backstraps help tailor the grip to the shooter, while the textured frame provides a secure hold. This used example includes one magazine and a case. The bore is reported to be in very good condition, and individual pistols may show holster wear on the frame, particularly near the muzzle.
The Glock 21 Gen4 combines proven service-pistol durability with a high-capacity .45 ACP platform and low-light-ready sights.