The Authentic Glock 20 GEN 4 is a full-size 10mm powerhouse built for demanding users who require maximum stopping power in a proven platform. It delivers the legendary Glock reliability in a potent caliber, making it a top choice for backcountry defense and duty use. Since we started stocking it in early 2024, it has consistently ranked among our best-selling handguns in its category.
Key Features
- Chambered in the powerful 10mm Auto cartridge for superior terminal performance.
- GEN 4 enhancements include a modular backstrap system for customizable grip fit.
- Rough Textured Frame (RTF) with improved grip texture for secure handling.
- Dual recoil spring assembly reduces felt recoil and increases component life.
- Includes three 15-round magazines, loader, cleaning rod, and brush.
Specifications
| Caliber | 10mm Auto |
| Barrel Length | 4.61″ |
| Overall Length | 8.07″ |
| Height | 5.51″ |
| Width | 1.34″ |
| Weight (measured) | 6.5 oz |
| Frame Finish | Polymer |
| Sight Configuration | Fixed |
Frequently Asked Questions
Is the Glock 20 suitable for concealed carry?
While it is a full-size pistol, its polymer frame keeps it manageable. Many users successfully carry it with a quality holster and belt. Our staff notes the weight is barely noticeable once holstered, adding under an ounce to your carry setup.
Can it handle full-power 10mm loads?
Yes. The Glock 20 is engineered from the ground up for the 10mm cartridge and handles factory loads across the power spectrum reliably, from milder range ammo to high-performance defensive and hunting rounds.
What is the difference between GEN 4 and earlier models?
The GEN 4 features the modular backstrap system, RTF texture, dual recoil spring, and an enlarged magazine release that is reversible for left-handed shooters. These updates improve ergonomics, control, and durability.
✅ Same-day shipping from Rockford, IL
✅ Discreet packaging
✅ 30-day returns
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