Glock G21 V MOS | .45 ACP | 4.61in | UV2150201MOS

The Glock G21 V MOS is a full-size, semi-automatic .45 ACP pistol built on Glock’s Gen5 platform with an optics-ready slide using the Modular Optics System (MOS). This configuration ships with three 10-round magazines and fixed sights on a black polymer frame. Its features—front slide serrations, flared mag-well and Glock Marksman Barrel design—make it well suited to range training and duty-style carry applications.

For mounting a miniature red dot under $1,000, a compact reflex such as the Vortex Venom or a Holosun models with MOS-compatible adapter plates pairs well with the G21 V MOS for fast target acquisition while maintaining sight radii for accurate follow-up shots.

Product Specifications

• The manufacturer is listed as Glock.
• The model is stated as G21 V MOS.
• The manufacturer part number is UV2150201MOS.
• The caliber is .45 ACP.
• The action is Semi-Auto.
• The barrel length is listed as 4.61 inches.
• The slide is optics-ready with a Proprietary MOS slide cut.
• The sights are Fixed.
• The frame material is Polymer.
• The finish is described as Black (nDLC/colored).
• The product includes 3 x 10-round magazines.
• The reported weight is 27.68 ounces.
• The overall length is 8.03 inches.
• Notable features include Modular Optics System, Flared Mag-Well, and Front Slide Serrations.
• The UPC is 764503068492.

The G21 V MOS blends the large-caliber performance of .45 ACP with Gen5 ergonomics and an optics-ready slide, offering a usable platform for range-focused practice and duty-style carry where permitted. Its polymer frame and proven Safe Action trigger system keep the controls familiar to Glock users while the included magazines and MOS compatibility make it a practical package for shooters who plan to add a red dot.

Owners commonly praise the model for its improved accuracy and its manageable recoil characteristics.

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