# Glock 21 - Guns For Sale

The Glock 21 is a full-size semi-automatic pistol chambered in .45 ACP, offering unmatched power, reliability, and accuracy in a lightweight, ergonomic design. Known for its durability and smooth operation, the Glock 21 is a popular choice among law enforcement, military personnel, and civilian shooters for personal defense, duty, and recreational use.

The Glock 21 features a 4.61-inch barrel and a generous 13+1 capacity, providing a balance of stopping power and ample firepower. Its polymer frame and steel slide construction ensure durability while keeping the pistol lightweight and manageable. The Safe Action® System ensures a consistent trigger pull and built-in safety features, offering reliable performance with every shot.

Designed with shooter comfort in mind, the Glock 21’s ergonomic grip provides a secure hold for enhanced control, even with the recoil of .45 ACP. The low bore axis minimizes muzzle flip, allowing for faster follow-up shots, while the nDLC finish adds corrosion resistance and durability.

Renowned for its dependability in extreme conditions, the Glock 21 delivers the robust performance required by professionals and enthusiasts alike. Whether for duty, defense, or the range, this full-size powerhouse offers Glock’s hallmark combination of precision and reliability.

## Featured Firearms (8 total)

| Product | Caliber | Price |
|---------|---------|-------|
| [Glock G21 Gen 3 .45 ACP Semi-Auto Pistol - 13 Rounds Polymer Powerhouse](https://gunsnation.com/p/glock-g21-gen-3-45-acp-semi-auto-pistol-13-rounds-polymer-powerhouse/UCDSUMmef) | .45 ACP | - |
| [Glock G21 Gen 4 .45 ACP - Ultimate Full-Size Defense & Sport Pistol](https://gunsnation.com/p/glock-g21-gen-4-45-acp-ultimate-full-size-defense-sport-pistol/UCDSUKgAn) | .45 ACP | - |
| [Glock G21 Gen 4 .45 ACP - Ergonomic Power & Precision Pistol](https://gunsnation.com/p/glock-g21-gen-4-45-acp-ergonomic-power-precision-pistol/UCDSUL6Y7) | .45 ACP | - |
| [Glock G21 Gen 4 .45 ACP Powerhouse: Reliable Defense & Sport Pistol](https://gunsnation.com/p/glock-g21-gen-4-45-acp-powerhouse-reliable-defense-sport-pistol/UCDSUL6Xj) | .45 ACP | - |
| [GLOCK G21 Gen 5 MOS .45 ACP Optics-Ready Semi-Auto Pistol](https://gunsnation.com/p/glock-g21-gen-5-mos-45-acp-optics-ready-semi-auto-pistol/UCDSUKvy0) | .45 ACP | - |
| [Glock G21 Gen 5 MOS .45 ACP Gray Optics-Ready Pistol - 13rd Capacity](https://gunsnation.com/p/glock-g21-gen-5-mos-45-acp-gray-optics-ready-pistol-13rd-capacity/UCDSUKw15) | .45 ACP | - |
| [Glock G21 Gen 4 .45 ACP Elite 13-Round Semi-Auto Pistol](https://gunsnation.com/p/glock-g21-gen-4-45-acp-elite-13-round-semi-auto-pistol/UCDSUOVge) | .45 ACP | - |
| [Glock G21 Gen5 MOS .45 ACP 13rd Optics-Ready Pistol - Black](https://gunsnation.com/p/glock-g21-gen5-mos-45-acp-13rd-optics-ready-pistol-black/UCDSUKvYr) | .45 ACP | - |

## Related Tags

- [Concealed Carry](https://gunsnation.com/t/concealed-carry)
- [Home Defense](https://gunsnation.com/t/home-defense)
- [Tactical](https://gunsnation.com/t/tactical)
- [Hunting](https://gunsnation.com/t/hunting)
- [Optic-Ready](https://gunsnation.com/t/optic-ready)
- [Best 9mm Handguns](https://gunsnation.com/t/best-9mm-handguns)
- [Military Classic](https://gunsnation.com/t/military-classic)
- [Match Pistols](https://gunsnation.com/t/match-pistols)

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*Data from [GunsNation](https://gunsnation.com)*