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Remarkable for its accuracy and light recoil, the Glock 21 Gen 4 delivers the legendary stopping power of the 45 ACP round with a higher magazine capacity. The modular back strap design on the G21 Gen 4 lets you instantly customize the grip to adapt to an individual shooter’s hand size. Its frame employs the scientifically designed, real-world-tested, Gen 4 rough textured technology. Internally, the Glock dual recoil spring assembly substantially increases the life of the system. A reversible enlarged magazine catch, changeable in seconds, accommodates left or right-handed operators. Comes with three 13rd magazines.
- Category : Pistols
- Type : Pistol
- Action : Double
- Caliber : 45 Automatic Colt Pistol (ACP)
- Barrel Length : 4.6″
- Capacity : 13+1
- Grips : Black Interchangeable Backstrap
- Sight Configuration : Fixed
- Weight : 38.3 oz
- Frame Finish : Black
FFL Transfer & Firearms Laws for Glock G21 USA Gen4, 45 ACP, 4.6", 13rd, Black Glock
All firearms, including the Glock G21 USA Gen4, 45 ACP, 4.6", 13rd, Black Glock, must be shipped to a licensed Federal Firearms License (FFL) dealer. You will be required to complete a background check and any necessary paperwork before taking possession.
How It Works
- Place your order online.
- Provide your preferred FFL dealer information.
- We ship the firearm directly to your FFL.
- You complete the background check and pickup at the FFL.
Legal Compliance
We comply with all federal and state firearm laws. It is your responsibility to ensure the Glock G21 USA Gen4, 45 ACP, 4.6", 13rd, Black Glock is legal in your state. Some states may have restrictions on certain firearm models or features.
Helpful Resources
Need assistance? Contact our Miami store for help with FFL transfers and firearm compliance.
Frequently Asked Questions About This Product
Why buy Glock G21 USA Gen4, 45 ACP, 4.6", 13rd, Black Glock from Miami Shooters Supply?
We’re a trusted firearms dealer offering fast shipping, competitive pricing, and 100% compliance with U.S. federal firearm laws. All orders ship from our licensed facility with full tracking and expert customer service.
Where can I buy Glock G21 USA Gen4, 45 ACP, 4.6", 13rd, Black Glock?
You can purchase this item directly on our website and have it shipped to your local FFL dealer. You can also visit us in-store in Miami, Florida.
Is Glock G21 USA Gen4, 45 ACP, 4.6", 13rd, Black Glock available now?
Availability is shown live on this page. If the “Add to Cart” button is visible, this item is currently in stock and ready to ship.
What category does this product belong to?
This product is listed under: Glock, RIFLES.
What tags or features does this product have?
Key features and tags for this product include: Guns.
Is this product legal in my state?
It is your responsibility to ensure this item is legal in your state or locality. We ship only to valid FFL dealers in compliance with U.S. laws. Always check your local regulations.
| Classification | Firearm |
|---|---|
| Manufacturer Number | UG2150203 |
| Brand | Glock |
FFL Transfer & Firearms Laws
All firearms, including the Glock G21 USA Gen4, 45 ACP, 4.6", 13rd, Black Glock, must be shipped to a licensed Federal Firearms License (FFL) dealer. A background check and any required local paperwork must be completed before you can take possession.
How It Works
- Place your order online.
- Send us your preferred local FFL dealer info.
- We ship the firearm to your FFL after verification.
- Complete background check and pick up from your dealer.
Legal Compliance
We comply with all U.S. firearm laws. It is your responsibility to ensure the Glock G21 USA Gen4, 45 ACP, 4.6", 13rd, Black Glock is legal in your state. Some states (e.g. CA, NY, NJ) have restrictions on magazine size or certain features.
Helpful Links
Need help? Contact our team — we’ll guide you through selecting a compliant firearm and the FFL transfer process.
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