The Glock G21 V MOS is a full-size semi-automatic pistol chambered in .45 ACP, built around Glock’s Gen5 enhancements and the Modular Optics System. It features a GLOCK Marksman Barrel (GMB) and an optics-ready, serrated slide to accept popular miniature red dot sights. The pistol ships with three 10-round magazines, a polymer frame with interchangeable backstraps for a tailored grip, and fixed sights for consistent sighting.
Key Specifications
- Chambered in .45 ACP for a proven cartridge choice in a full-size platform.
- The barrel measures 4.61 inches and uses the GLOCK Marksman Barrel (GMB) profile for consistent bore and crown geometry.
- The slide is optic-ready and serrated and features a GLOCK nDLC finish.
- The frame is constructed from polymer and includes an accessory rail and interchangeable backstraps.
- Includes three 10‑round magazines for immediate use out of the box.
- Features a proprietary MOS slide cut and includes one adapter plate for mounting optics.
- Sight configuration is fixed sights for reliable co-witness with many sights.
- Action is semi-automatic, striker-fired with Glock’s Safe Action system.
- Additional features include front slide serrations and a flared mag‑well to assist reloads and handling.
Built for shooters who value modular optics capability and proven ergonomics, the G21 V MOS blends Gen5 refinements with the GLOCK Marksman Barrel and a durable nDLC finish. Its full-size frame and included three 10‑round magazines make it suitable for range use, training, and duty-style applications where a reliable, optics-ready platform is required.
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