The Glock G20 Gen 4 is a full-size semi-automatic pistol chambered in 10mm. It ships with a Flat Dark Earth Cerakote polymer frame and a black forged steel slide. The 10mm round gives it more energy than standard 9mm or .40 S&W, which is why this model gets used for handgun hunting, backcountry carry, and duty roles where stopping power matters.
Key Specifications
- Brand: Glock
- Model: G20 Gen 4
- Series: Gen 4
- Category: Semi-Auto Pistols
- Caliber: 10mm
- Action: Safe Action (Double)
- Barrel Length: 5 inches
- Overall Length: 8.03 inches
- Height: 5.47 inches
- Weight: 30.7 ounces (1.92 lbs)
- Capacity: 15 rounds (standard)
- Frame Material: Polymer with Flat Dark Earth Cerakote finish
- Slide Material & Finish: Forged Steel, Black finish
- Safety Features: Trigger/Firing Pin/Drop safety system
- Sights Type: Fixed front sight (1-Dot) and rear sight (2-Dots)
Detailed Features
The full-size frame keeps the 10mm's recoil more manageable than it would be in a compact platform. At 30.7 oz unloaded, there's enough mass to absorb the round's push without going overboard on weight. The 15-round magazine capacity is higher than most competitors in this caliber. Glock's Safe Action system uses three passive safeties (trigger, firing pin, and drop), so the pistol fires only when the trigger is pulled completely through.
Gen 4 additions include the rough-textured grip surface, reversible magazine release, and dual recoil spring assembly. The 5-inch barrel gives the 10mm more velocity than shorter-barreled alternatives.
Usage
The G20 works well for hunters who want a sidearm capable of taking larger game or deterring predators. It's also used in IDPA/IPSC competition divisions that allow major-caliber pistols. For duty carry, the 15-round magazine and full-size grip make it practical for officers who want more power than a 9mm. Recoil is noticeable but controllable for most shooters with some trigger time.