The Glock G21 Gen5 MOS is a full-size semi-automatic handgun chambered in .45 ACP, built for range use, duty applications, and home defense. The MOS slide is precision machined to accept miniature red dot optics with adapter plates, and the package includes three 10-round magazines along with common maintenance accessories.

The pistol pairs a 4.61-inch black steel Glock Marksman Barrel with a black nDLC serrated slide and a black polymer frame featuring an accessory rail. Ergonomics include a textured polymer grip with interchangeable backstraps, ambidextrous slide stop levers, and an enlarged magazine floor plate to assist with reloads.

Key Specifications

The action is Safe Action.
The barrel length is 4.61 inches.
The caliber is .45 ACP.
The capacity is 10 + 1.
The number of magazines included is 3.
The grip material is Black Textured w/Interchangeable Backstrap.
The safety is Trigger/Firing Pin/Drop.
The slide description is Serrated.
The sights are Fixed.
The frame finish is Black.

Buy the Glock G21 Gen5 MOS .45 ACP online today for a reliable, optics-ready full-size Glock handgun that balances ergonomics and caliber performance.

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