Glock G21 Gen4 .45 ACP Full-Size Pistol with Meprolight Tru-Dot Night Sights, 4.61 in Barrel, 13+1
This Glock G21 Gen4 is a full-size .45 ACP configured with Meprolight Tru-Dot tritium night sights and the Gen4 feature set. It pairs a 4.61-inch cold-hammer-forged, polygonal-rifled barrel with a 13+1 capacity and a striker-fired action. The slide is matte black with rear serrations, and the black polymer frame carries the Gen4 RTF texture and Modular Backstrap System. Austrian origin and factory rollmarks are present.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling marks from prior use are present. See photos for details.
What’s Included
- Glock factory hard case
- Glock instruction manual
- 3x 13-round Glock OEM polymer magazines for .45 Auto
- Meprolight Tru-Dot tritium night sights (installed)
- Misc parts
The G21 Gen4 chambered in .45 ACP delivers a 13+1 standard capacity in a full-size frame. The slide is marked "21 Gen4" and "45 Auto," and uses rear cocking serrations for positive manipulation. The striker-fired system is set at a 6.3 lb trigger weight.
The 4.61-inch barrel is cold-hammer-forged with polygonal rifling. This robust barrel construction and rifling profile are consistent with Glock’s .45 Auto design and are paired with a matte black slide finish.
The black polymer Gen4 frame features the RTF grip texture, a Modular Backstrap System for fitment options, and an enlarged, reversible magazine catch. A Glock accessory rail on the dustcover accommodates compatible rail-mounted accessories.
Meprolight Tru-Dot tritium night sights are installed, with a single-dot tritium front and Meprolight rear night sight for low-light visibility. Origin and markings include "MADE IN AUSTRIA GLOCK, INC., SMYRNA, GA" and an "AT" stamp on the barrel hood, with tri-location serialization present.