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Great Lakes Firearms and Ammunition AR-15 Flat Dark Earth .450 BM 18″ Barrel 5-Rounds

~~$869.00~~ $782.10

The GLFA AR-15 chambered in .450 Bushmaster is a robust and powerful semi-automatic rifle designed for hunters and marksmen seeking exceptional performance. This model features an 18-inch barrel available in either 416R Stainless Steel or 4150 CRMOV Nitride, complete with 11/16 x 24 threads for enhanced accuracy and durability. The barrel’s unique 1:24 twist rate is optimized for the .450 Bushmaster caliber, ensuring precision with every shot. Finished in durable Cerakote and built on an aluminum 7075 frame, this rifle is both rugged and reliable under various conditions.

Description

GLFA AR-15 .450 Bushmaster Features

This rifle does not include ambidextrous safety features but is equipped with a Mil-spec, polymer grip and a 15.25″ Aluminum 6061 handguard with a full picatinny rail for superior handling and customization options. The modified M4 feed ramps ensure reliable feeding of the .450 Bushmaster rounds, while the mid-length gas system with a 0.750 gas block promotes consistent cycling. It comes with one 5-round magazine, making it suitable for hunting where magazine capacity may be restricted.

The included muzzle brake is specifically designed to be 6 degrees forward, allowing for wrench tightening without the need for Loctite, reducing recoil and enhancing the shooting experience. While the rifle comes without sights, the full picatinny rail provides ample space for mounting optics and other accessories. The trigger is Mil-spec with a 5.5-6 lb pull, offering a consistent and crisp pull for accurate shooting.

GLFA AR-15 .450 Bushmaster Specifications

Action: Semi-Automatic
Barrel Length: 18 inch, 1:24 Twist
Barrel Material: 416R SS or 4150 CRMOV Nitride
Thread Pattern: 11/16 x 24 threads
Caliber: .450 Bushmaster
Finish: Cerakote
Frame Material: Aluminum 7075
Gas System: Mid Length, 0.750 Gas Block
Grip: Mil-spec, Polymer
Handguard: 15.25″ Aluminum 6061, Full picatinny rail
Magazine Capacity: 5 Round
Muzzle Brake: Included
Sights: None
Trigger: Milspec, 5.5-6 lb pull
Upper Receiver: 7075 Oversized
Overall Length: 35.00″
Weight: 6.4 lbs

More Information
Barrel Length	18
Caliber	.450 BM
Capacity	5
Condition	New in Box
Finish Per Color	Flat Dark Earth
Manufacturer	Great Lakes Firearms and Ammunition
Manufacturer Part Number	GL15450FDE
Model	AR-15
Type	Modern Sporting Rifles
UPC	702458690672

Frequently Asked Questions About This Product

Why buy Great Lakes Firearms and Ammunition AR-15 Flat Dark Earth .450 BM 18" Barrel 5-Rounds 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 Great Lakes Firearms and Ammunition AR-15 Flat Dark Earth .450 BM 18" Barrel 5-Rounds?

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 Great Lakes Firearms and Ammunition AR-15 Flat Dark Earth .450 BM 18" Barrel 5-Rounds 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: Modern Sporting Rifles, RIFLES.

What tags or features does this product have?

Key features and tags for this product include: Modern Sporting Rifles, RIFLES.

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.

FFL Transfer & Firearms Laws for Great Lakes Firearms and Ammunition AR-15 Flat Dark Earth .450 BM 18" Barrel 5-Rounds

All firearms, including the Great Lakes Firearms and Ammunition AR-15 Flat Dark Earth .450 BM 18" Barrel 5-Rounds, 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 Great Lakes Firearms and Ammunition AR-15 Flat Dark Earth .450 BM 18" Barrel 5-Rounds 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.

FFL & Firearm Laws
FFL Transfer & Firearms Laws

All firearms, including the Great Lakes Firearms and Ammunition AR-15 Flat Dark Earth .450 BM 18" Barrel 5-Rounds, 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
1. Place your order online.
2. Send us your preferred local FFL dealer info.
3. We ship the firearm to your FFL after verification.
4. 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 Great Lakes Firearms and Ammunition AR-15 Flat Dark Earth .450 BM 18" Barrel 5-Rounds 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.