Glock

Glock 21 Gen 5 MOS 45 ACP 4.61in Barrel 13+1(3) Optic Ready

(No Reviews)

Quantity on Hand: 26

Add to Wishlist

Sale not allowed in California; Connecticut; Hawaii; Massachusetts; Maryland; New Jersey; New York; Rhode Island; Washington

The Glock 21 Gen5 MOS is a full-size, duty-capable .45 ACP built for shooters who want proven reliability and modern modularity in a large-frame package. Chambered in .45 ACP with a 4.61-inch barrel, the G21 Gen5 delivers the terminal performance of a full-power round while maintaining controllable recoil and a comfortable grip profile for follow-up shots. Its full-size frame provides a long sight radius and stable platform for accurate shooting at the range or in professional use.

This MOS (Modular Optic System) variant comes optic-ready so you can mount popular red-dot sights quickly and securely, turning the G21 into a precision-oriented duty or competition pistol with minimal hassle. Built on Glock’s Gen5 improvements—refined ergonomics, improved barrel and internals, and ambidextrous-friendly controls—the G21 Gen5 MOS is purpose-designed for users who need durability, straightforward maintenance, and consistent performance under stress. Supplied with three magazines, it’s ready for extended training, duty carry, or defensive setups right out of the box.

Key Features:

• Caliber: .45 ACP

• Barrel Length: 4.61 inches

• Capacity: 13+1 rounds (includes three magazines)

• Optic-ready (MOS) for direct red-dot mounting

• Gen5 platform with refined ergonomics and updated internals

• Full-size frame for improved sight radius, recoil control, and comfort

• Durable, low-maintenance Glock design ideal for range, duty, or defensive use

 Includes 3 magazines, mag loader, cleaning kit, pistol case and gun lock.

Specifications

View All Reviews