Glock 21 Gen4 .45 ACP Full-Size Pistol with Tritium TG-H3 Sights, Pyramid Flat-Faced Trigger, and 2x 13-Round Magazines
This Glock 21 Gen4 stands out as a full-size .45 ACP with well-chosen upgrades and factory Gen4 features. It is equipped with tritium 3-dot sights marked "TG-H3," a pyramid flat-faced trigger shoe with a blue safety tab, and a Pachmayr rubber wraparound grip sleeve. The Gen4 RTF3 frame texture, Modular Backstrap System, and enlarged reversible magazine release round out a capable package with a 4.61-inch barrel and 13+1 capacity.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Strong, well-defined polygonal rifling.
Specific Condition Notes: Some light wear is present from prior handling and use, but the pistol remains in overall great shape.
What’s Included
- Glock factory hard case
- 2x 13-round Glock factory .45 Auto double-stack magazines
- Gen4 interchangeable beavertail backstraps with installation pin/tool
- Tritium 3-dot sights marked "TG-H3" (installed)
- Aftermarket pyramid flat-faced trigger shoe with blue safety tab (installed)
- Pachmayr rubber wraparound grip sleeve (installed)
The Gen4 RTF3 frame texture offers a secure hold, complemented by the Modular Backstrap System to tailor grip size. The frame integrates an accessory rail, and the enlarged, reversible magazine release supports easy operation. Capacity is 13+1 with the included factory double-stack magazines.
Upgrades include tritium 3-dot night sights marked "TG-H3" and a pyramid flat-faced trigger shoe featuring a blue safety tab. A Pachmayr rubber wraparound grip sleeve is installed for added purchase and comfort. The pistol uses Glock’s striker-fired Safe Action system.
The 4.61-inch steel barrel features polygonal rifling, and the slide wears a matte nitrided finish. The slide is marked "21 Gen 4" and ".45 Auto." Proof and import markings include "AUSTRIA" and "MADE IN AUSTRIA GLOCK, INC., SMYRNA, GA."
Chambered in .45 ACP, this full-size Gen4 model is built on a polymer frame and includes the original Glock factory hard case and Gen4 backstrap set. It is a complete setup with practical night sights and functional enhancements already in place.