Glock G21 Gen5 MOS
Glock G21 Gen5 MOS .45 ACP 4.61in 13+1 Optic-Ready Pistol
The GLOCK G21 Gen5 MOS is a full-size .45 ACP service pistol built on GLOCK’s Gen5 platform and supplied with a Modular Optics System (MOS) cut for miniature red-dot sights. It features a 4.61 in GLOCK Marksman barrel, fixed polymer sights (U-notch rear / white-dot front), a Picatinny accessory rail and a textured polymer frame for positive purchase.
The Gen5 fire-control system (Safe Action) and ambidextrous slide stop lever are retained, and the standard magazine capacity is 13 rounds (standard/offered configuration). The MOS configuration makes the pistol optics-ready out of the box for common micro red-dot fo…

Specifications
| UPC | 764503061356 |
|---|---|
| Brand | Glock |
| Model | G21 Gen5 MOS |
| Caliber | .45 ACP |
| Series | MOS |
| Mfg Part Number | UA215S203MOSD |
| Barrel Length | 4.61 in in |
| Capacity | 13+1 |
| Year Introduced | 2023 |
| Overall Length | 8.07 in |
| Sights | Fixed polymer sights (U-notch rear, white-dot front) |
| Frame | Polymer |
| Finish | FDE |
| Grip | Textured polymer |
| Weight | 29.10 oz lbs |
| Purpose 1 | Personal Defense |
| Purpose 2 | Duty / Professional Use |
GLOCK is a global leader in firearm innovation and manufacturing, renowned for its high-quality pistols that have become the standard for law enforcement, military, and civilian use. Founded in 1963 by Gaston Glock in Austria, the company revolutionized the firearms industry in the early 1980s with the introduction of the GLOCK 17, a polymer-framed, striker-fired pistol. This groundbreaking design set new standards for durability, reliability, and ease of use, making GLOCK pistols the preferred choice for professionals and enthusiasts worldwide.
GLOCK's commitment to quality and innovation is evident in its extensive lineup of firearms, which includes a range of models designed to meet various needs and preferences. Whether you are looking …
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