Glock G20 Gen4 10mm Auto, Full-Size, 4.61 in Barrel, 15+1, Factory Case, 3 Magazines
This Glock G20 Gen4 is a full-size 10mm Auto with a 4.61-inch barrel and 15+1 capacity, offering the Gen4 grip texture and controls in a proven, durable package. It comes with three factory 15-round magazines and the original Glock case. This example features matching serial numbers on the slide, barrel, and frame, a non-MOS slide with no optic cut, and Austrian manufacture markings.
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 - Strong polygonal rifling with crisp, well-defined radiused profiles.
Specific Condition Notes: This pistol shows little evidence of prior use. The bore is bright and reflective.
What’s Included
- Glock factory hard case with model/serial label
- Three 15-round Glock factory 10mm Auto magazines
- Glock Gen4 interchangeable backstrap
- Glock polymer magazine speed loader
The Gen4 configuration adds the rough-textured frame with finger grooves, an enlarged and reversible magazine release, and an interchangeable backstrap system. These updates help tailor the pistol to different hand sizes while maintaining Glock’s familiar ergonomics.
The 4.61-inch steel barrel is cold-hammer-forged with polygonal rifling and a nitrided finish. The nitrided slide includes an external extractor and fixed polymer sights with a white-dot front and notch rear, delivering a simple, durable sight picture.
This G20 Gen4 ships with three factory 15-round double-stack magazines, supporting its 15+1 capacity. An integral Glock accessory rail on the dustcover provides mounting space for compatible lights or lasers.
It is a striker-fired design with Glock’s integrated trigger, firing pin, and drop safeties. The slide is non-MOS with no optic cut, and the pistol uses a dual recoil spring assembly. Marked “MADE IN AUSTRIA GLOCK, INC., SMYRNA, GA.” with matching serial numbers on the slide, barrel, and frame, it reflects consistent factory assembly and origin.