.450 Bushmaster 10.5" AR-15 Upper Assembly – Magnum Linear Comp
| Brand: | Moriarti Armaments |
| Product Code: | MA-450-10-MAGNUM-3 |
| Availability: | In Stock |
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$299.95
- $499.95
Magnum Series
.450 Bushmaster 10.5" AR-15 Upper Assembly – Magnum Linear Comp
The Moriarti .450 Bushmaster 10.5" Magnum Upper Assembly combines a heavy-profile barrel, forged big-bore upper receiver, 10-inch Diamond Cut M-LOK handguard, and a 3.25-inch Kaw Valley Precision Magnum Linear Compensator.
The 10.5-inch barrel is manufactured from 4150 Chrome Moly Vanadium steel with a Parkerized finish, 1:24 twist rate, and pistol-length gas system. Its heavy, non-fluted profile features a single feed ramp and 5/8×32 muzzle threads.
The assembly features a forged 7075 aluminum A3 flat-top upper receiver with an enlarged ejection port designed for .450 Bushmaster and .458 SOCOM cartridges. The receiver is finished in black hardcoat anodizing and includes an installed forward assist and dust cover.
A 10-inch Diamond Cut M-LOK free-float handguard provides a distinctive geometric design, while the Magnum Linear Compensator directs muzzle gases forward.
Bolt carrier group and charging handle selections are available as optional add-ons.
Key Features
Caliber: .450 Bushmaster
Barrel: 10.5" heavy-profile, 4150 CMV steel
Barrel Finish: Parkerized
Twist Rate: 1:24
Gas System: Pistol length
Gas Block Diameter: .750"
Handguard: 10" Diamond Cut M-LOK free-float
Muzzle Device: 3.25" Kaw Valley Precision Magnum Linear Compensator
Upper Receiver: Forged 7075 aluminum A3 flat-top
Ejection Port: Enlarged .450 Bushmaster / .458 SOCOM design
BCG and Charging Handle: Optional add-ons
Specifications
| Attribute | Specification |
|---|---|
| Platform | AR-15 |
| Caliber | .450 Bushmaster |
| Model | Magnum |
| Barrel Length | 10.5 inches |
| Barrel Profile | Heavy |
| Barrel Material | 4150 Chrome Moly Vanadium |
| Barrel Finish | Parkerized |
| Twist Rate | 1:24 |
| Feed Ramp | Single |
| Barrel Fluting | Non-fluted |
| Gas System | Pistol length |
| Gas Block Diameter | .750 inch |
| Muzzle Thread Pitch | 5/8×32 |
| Muzzle Device | Kaw Valley Precision Magnum Linear Compensator |
| Muzzle Device Length | 3.25 inches |
| Handguard | 10" Diamond Cut M-LOK |
| Handguard Finish | Black |
| Upper Receiver | A3 flat-top, forged 7075 aluminum |
| Receiver Finish | Black hardcoat anodized |
| Ejection Port | Enlarged .450/.458 big-bore cut |
| Forward Assist | Installed |
| Dust Cover | Installed |
| Top Rail | Picatinny |
| Bolt Carrier Group | Optional add-on |
| Charging Handle | Optional add-on |
Package Includes
One assembled .450 Bushmaster 10.5" Magnum upper assembly
Installed 10" Diamond Cut M-LOK handguard
Installed 3.25" Kaw Valley Precision Magnum Linear Compensator
Installed gas system
Bolt carrier group and charging handle only when selected
Lower receiver, magazine, and ammunition are not included.
Frequently Asked Questions
What is the difference between the .450 Bushmaster Tanker and Magnum upper assemblies?
Both configurations feature the same 10.5-inch heavy-profile barrel specifications, forged big-bore receiver, and 10-inch Diamond Cut M-LOK handguard. The Magnum model features a 3.25-inch Kaw Valley Precision Magnum Linear Compensator, while the Tanker retains its original Tanker muzzle device.
Does the Magnum upper include a bolt carrier group and charging handle?
Both components are optional add-ons and must be selected separately.
Product Image Notice
Images may not be the exact representation of the product.
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