This ammo is for cartridge size .45 Colt (Long Colt).
The bullet is made from Copper.
The diameter (caliber) of this bullet is 0.452.
This bullet weighs 135 grains.
This bullet leaves the barrel at 1410 feet per second.
The ammo case is made from Brass.
This ammo is a proven round for hunting.
The bullet in this product does NOT contain lead.
This round is designed to be supersonic and travels faster than the speed of sound.
The muzzle energy of this ammo is 596 ft lbs.
This product has been designed to be an effective choice for the ultimate in self-defense applications.
The bullet in this product has a Sectional Density, (SD) of 0.0943971448709486. SD is the ratio of an object’s mass to its cross sectional area with respect to a given axis. It conveys how well an object’s mass is distributed (by its shape) to overcome resistance along that axis.
This ammo IS SAFE to use in a suppressor.
The bullet in this ammo has a ballistic coefficient (G1) of – Generally, the higher the coefficient, the more stable the projectile will be in flight.
Each box of ammo contains 20 loaded pieces of ammunition.
This ammo is manufactured by Underwood Ammo
FFL Transfer & Firearms Laws for Underwood Ammo 45 Long Colt, 135gr. Extreme Defender, 20rd Box
All firearms, including the Underwood Ammo 45 Long Colt, 135gr. Extreme Defender, 20rd Box, 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 Underwood Ammo 45 Long Colt, 135gr. Extreme Defender, 20rd Box 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 Underwood Ammo 45 Long Colt, 135gr. Extreme Defender, 20rd Box 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 Underwood Ammo 45 Long Colt, 135gr. Extreme Defender, 20rd Box?
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 Underwood Ammo 45 Long Colt, 135gr. Extreme Defender, 20rd Box 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: Ammunition, Self Defense Ammo.
What tags or features does this product have?
Key features and tags for this product include: Ammunition, Underwood Ammo.
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.
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FFL Transfer & Firearms Laws
All firearms, including the Underwood Ammo 45 Long Colt, 135gr. Extreme Defender, 20rd Box, 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 Underwood Ammo 45 Long Colt, 135gr. Extreme Defender, 20rd Box 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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