Glock 21 MOS Gen5 .45 ACP Pistol
$579.99
Glock 21 MOS Gen5 .45 ACP Pistol 4.6″ Barrel 13+1 Round Black In Stock 2026
Buy Glock 21 MOS Gen5 .45 ACP Pistol – optics-ready, full-size .45 ACP powerhouse with Gen5 ergonomics and unmatched reliability.
The Glock 21 MOS Gen5 delivers legendary Glock durability in .45 ACP with a 4.6″ barrel, 13+1 capacity, and factory MOS optics-ready slide. Built for duty, self-defense, and competition, it offers superior stopping power and fast target acquisition.
Very Limited Stock – Glock 21 MOS Gen5 is Selling Fast. Order Now Before It’s Gone.
Product Specifications
- Model: Glock 21 MOS Gen5
- Caliber: .45 ACP
- Capacity: 13+1 Rounds
- Barrel Length: 4.6 inches
- Action: Safe Action (Striker Fired)
- Optics Ready: MOS (Modular Optic System)
- Sights: Fixed Glock Sights (MOS compatible)
- Frame: Polymer with Gen5 texture
- Finish: Black nDLC
- Weight: 26.28 oz (unloaded)
- Origin: USA
Why Shooters Choose the Glock 21 MOS Gen5 .45 ACP Pistol
- Massive .45 ACP stopping power with 13+1 capacity
- MOS optics-ready slide for easy red dot mounting
- Gen5 ergonomics with improved grip texture and no finger grooves
- Legendary Glock reliability and simplicity
- Flared magwell and ambidextrous slide stop for faster reloads
- Backed by Glock’s reputation and warranty
Current Stock Alert
Limited Stock: Only a few units remain in this configuration.
Ready to Buy Glock 21 MOS Gen5 .45 ACP Pistol?
Limited stock available right now.
Buy Now – Glock 21 MOS Gen5
Fast & Secure Shipping – Ships to most legal locations (firearm transfer regulations apply – FFL required).
Comprehensive FAQ – Glock 21 MOS Gen5 .45 ACP Pistol
Q: Is the Glock 21 MOS Gen5 good for duty and self-defense? A: Yes. The .45 ACP caliber and high capacity make it a powerful choice for duty and home defense.
Q: What optics fit the MOS slide? A: Compatible with most popular red dots using MOS plates (Trijicon RMR, Holosun, etc.).
Q: How is the Gen5 trigger? A: Improved Gen5 trigger with smoother pull and shorter reset.
Q: What caliber is it chambered in? A: .45 ACP — legendary stopping power with manageable recoil in the Gen5 frame.
Q: How fast is shipping? A: In-stock orders usually ship the same or next business day (subject to FFL transfer).
Q: Can I return the pistol? A: Yes. We offer a 30-day satisfaction guarantee on firearms (subject to our return policy and local laws).
Q: Is Glock made in the USA? A: Yes. Designed and manufactured in the USA with a strong reputation for reliability.

