Glock G21 Gen5 MOS .45 ACP 4.6″ 3x10rd
- Caliber/Gauge .45 ACP
- Capacity 10
- Barrel Length 4.6000
- Action Safe Action
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How the transfer works
- Complete your order here as normal.
- Choose your local FFL dealer at checkout.
- We ship to that dealer once we have their current license on file.
- You complete ATF Form 4473 and the background check in person at pickup.
Dealer transfer fees are set by the dealer and paid directly to them.
Details
The Glock 21 Gen5 MOS is a full-size, semi-automatic pistol chambered in .45 ACP with a 4.6-inch barrel. This Gen5 example includes the Modular Optic System (MOS) slide cut for mounting miniature red-dot optics and features Glock Marksman Barrel rifling and Gen5 ergonomic enhancements. The pistol ships with three 10‑round magazines and is finished in black on a polymer frame.
Key Specifications
- The pistol is chambered for .45 ACP.
- The barrel measures 4.6 inches.
- The action is Semi-Auto.
- The frame material is Polymer.
- The finish/color is listed as Black.
- Optic footprint: Proprietary slide cut (MOS).
- Includes 3 × 10‑round magazines.
- Reported magazine capacity is inconsistent in source data; see notes.
- Sights are Fixed.
- Reported weight is inconsistent in source data; see notes.
Balanced for range work and duty use, the G21 Gen5 MOS brings Gen5 ergonomics and optics readiness to the .45 ACP platform. Its configuration—polymer frame, MOS slide, and included magazines—makes it a practical, service-oriented option for shooters who value straightforward function and modular optic capability.
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Specifications
| UPC | 764503061639 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | UA215S201MOS |
| Action | Safe Action |
| Barrel Finish | Black |
| Barrel Length | 4.6000 |
| Caliber/Gauge | .45 ACP |
| Capacity | 10 |
| Hand | Ambidextrous |
| Number of Magazines | 3 |
| Product Type | Safe Action |
| Safety | Firing Pin/Trigger Block |
| Shipping Weight | 3.95 |
| Sights | Fixed |
| Sights Type | FIXED |
| Slide Description | Serrated |
| Length | 8.07'' |
| Magazine Included | 3 x 10-Round |
| Model | 21 |
Shipping & FFL
Firearms are shipped only to a Federal Firearms Licensee. We must have a signed copy of the receiving dealer's license on file before shipment. Once the firearm arrives, you complete ATF Form 4473 and a NICS background check with that dealer. Transfer fees are set by, and paid to, the receiving dealer.
All firearm sales are final. Inspect the firearm at your dealer before completing the transfer — once it has transferred to you on a Form 4473 it cannot be returned to us. Defects are handled under the manufacturer's warranty.
