Product Overview
- Full-size semi-automatic .45 ACP pistol with Modular Optic System (MOS) slide cut for mounting red dot optics.
- Glock Marksman Barrel and dual recoil spring assembly; modular backstrap system accommodates different hand sizes.
- Includes three 10-round magazines; 10+1 capacity.
- Must ship to a Federal Firearms License (FFL) holder.
Overview
The Glock 21 Gen 5 MOS in .45 ACP is a full-size, striker-fired semi-automatic pistol built on a polymer frame. Manufactured in the USA, the G21 Gen 5 MOS features a 4.61" Glock Marksman Barrel, an MOS optic-ready slide with a black nDLC finish, fixed 3-dot sights, and an overall length of 8.07". Capacity is 10+1 rounds.
Key Features
- Glock Marksman Barrel (GMB), 4.61": polygonal rifling and improved crown for consistent performance.
- MOS optic-ready slide: factory-milled cut allows direct mounting of compatible red dot sights.
- Black nDLC slide finish: corrosion- and wear-resistant coating exclusive to Glock.
- Modular backstrap system: interchangeable backstraps let shooters adjust grip fit without tools.
- Dual recoil spring assembly: reduces felt recoil and extends service life of components.
- Reversible, enlarged magazine catch: field-configurable for left- or right-handed use.
- Firing pin and trigger block safeties: no external manual safety lever.
What's In The Box
- Glock 21 Gen 5 MOS pistol
- Three 10-round magazines
FFL & Compliance
This firearm must be shipped to a Federal Firearms License (FFL) holder. Buyers are responsible for understanding and complying with all applicable local, state, and federal laws prior to purchase. Magnum Ballistics does not provide legal advice or determine buyer eligibility. We ship only to the FFL dealer selected during checkout.
