Original price was: $545.00.$345.00Current price is: $345.00.
In Stock & Ready To Ship
$545.00
Save $200
Buy the Glock 21 Gen 5 MOS FS online at Corex Armory. Chambered in hard-hitting .45 ACP, this Gen 5 edition incorporates factory Front Serrations (FS), an optics-ready Modular Optic System (MOS) slide cut, and a match-grade Glock Marksman Barrel (GMB) for maximum stopping power and precision.
- Caliber: .45 ACP
- Capacity: 13+1 Rounds (Includes 3 Factory Magazines)
- Barrel: 4.61″ Glock Marksman Barrel (GMB)
- Optics Ready: Factory MOS Cut with Adapter Plates
Description
Buy Glock 21 Gen 5 MOS FS Online – In Stock
Quick Product Overview
The Glock 21 Gen 5 MOS FS is a full-size .45 ACP polymer handgun engineered with over 20 Gen 5 platform enhancements. Featuring a 13+1 round capacity, a 4.61″ Glock Marksman Barrel (GMB), precision factory Front Serrations (FS), and the factory Modular Optic System (MOS) slide cut, the Glock 21 Gen 5 provides maximum stopping power, customizable red dot mounting, and flawless ambidextrous control.
Buy Glock 21 Gen 5 MOS FS Online at Corex Armory
When looking to buy Glock 21 Gen 5 MOS FS online, Corex Armory provides verified factory-fresh inventory with fast, nationwide FFL processing. Delivering major stopping power in a refined full-size platform, this .45 ACP handgun pairs superior magazine capacity with factory optics-ready versatility.
Whether selected for duty wear, home defense, or tactical range work, the Gen 5 updates refine ergonomic handling and ensure consistent accuracy shot after shot.
Glock 21 Gen 5 MOS FS Technical Specifications
| Feature | Specification Details |
|---|---|
| Model Name | Glock 21 Gen 5 MOS FS (Front Serrations) |
| Caliber | .45 ACP |
| Regular / Sale Price | $545.00 $345.00 (On Discount) |
| Capacity | 13+1 Rounds (Includes 3 Factory Magazines) |
| Barrel Length & Type | 4.61 inches (Glock Marksman Barrel – GMB) |
| Overall Length | 8.07 inches |
| Optic Mounting System | Factory Modular Optic System (MOS) Slide Cut |
| Slide Serrations | Precision Factory Front & Rear Serrations (FS) |
| Protective Finish | Tough nDLC Non-Reflective Corrosion Resistant Finish |
Key Advantages of the Glock 21 Gen 5 MOS FS
1. Modular Optic System (MOS) & Front Serrations (FS)
Mounting your preferred mini reflex red dot sight is seamless. The factory MOS slide cut accommodates adapter plates for popular red dots including Trijicon, Holosun, Leupold, and C-More without requiring custom milling. Precision Front Serrations (FS) provide a tactile purchase surface for press-checks and positive slide manipulation under pressure.
2. Match-Grade Glock Marksman Barrel (GMB)
Accuracy receives a major upgrade with the Gen 5 Glock Marksman Barrel. Featuring enhanced polygonal rifling and an updated barrel crown, the GMB delivers tighter shot groupings and consistent bullet velocity out of the box.
3. Fully Ambidextrous Controls & Custom Ergonomics
The Gen 5 frame eliminates finger grooves, allowing comfortable hand placement for various hand sizes. An ambidextrous slide stop lever and reversible magazine catch make operating the pistol intuitive for both right-handed and left-handed shooters.
Why Buy Your Glock 21 Gen 5 MOS FS From Corex Armory?
Based in California, Corex Armory is your trusted online source for tactical firearms and match handguns. Purchasing your Glock 21 Gen 5 MOS FS with us includes exclusive dealer benefits:
- FREE USA Shipping: 100% free insured shipping directly to your chosen local FFL dealer.
- Discounted Price: Save $200 instantly with our online price drop from $545 to $345.
- In-Stock Guarantee: Certified real-time inventory tracking ensures prompt order fulfillment.
- Streamlined FFL Transfers: Our support team coordinates paperwork directly with your dealer for hassle-free pickups.
Simple 4-Step FFL Ordering Process
- Place Your Order: Add the Glock 21 Gen 5 MOS FS to your cart and complete checkout.
- Select an FFL Dealer: Enter the name or license details of your local gun shop during checkout.
- Fast Transfer Shipping: Corex Armory ships your firearm directly to your dealer in protective packaging.
- Background Check & Pickup: Complete the standard Form 4473 background check at your dealer and take home your firearm.
Frequently Asked Questions (FAQ)
Does the Glock 21 Gen 5 accept older Gen 4 magazines?
Yes. The Glock 21 Gen 5 accepts standard 13-round factory Glock .45 ACP magazines from previous generations.
What optics adapter plates work with the MOS system?
The factory MOS package includes adapter plates engineered to fit mini reflex sight footprints from major manufacturers including Trijicon, Holosun, Leupold, and C-More.
What comes inside the factory box?
Every Glock 21 Gen 5 MOS FS package includes the pistol, three 13-round magazines, MOS optic adapter plates, interchangeable backstraps, magazine speed loader, cleaning kit, and lockable polymer hard case.
How does free shipping work at Corex Armory?
Corex Armory provides FREE insured shipping on all firearms across the USA. Select your local FFL dealer at checkout, and our shipping department handles the rest.
