AR-10 .308 24" Stainless Spiral Fluted Tactical Upper – M-LOK

24" Spiral Fluted .308 Upper: Specs

Manufacturer: Moriarti Armaments
Caliber: .308 Winchester / 7.62x51mm NATO
Barrel Length: 24"
Upper Receiver: A3 Flat Top
Gas System: Rifle Length
Handguard: Mlok Slim Profile

Product Description:

The AR-10 .308 24" Stainless Steel Spiral Fluted Tactical Upper Assembly is designed for precision and power, making it a standout choice for tactical and long-range shooting. Featuring a 24" 416 stainless steel barrel with a bull contour and spiral fluting, this upper combines strength, durability, and improved cooling efficiency. The barrel is hardened to 26-32 RC and stress relieved, ensuring consistent performance and longevity.

Chambered in .308 Win, with a 1:10 RH twist, the barrel is button-rifled for exceptional accuracy. The barrel's .936" diameter under the gas block ensures optimal gas flow, while the X-treme muzzle brake reduces recoil for better follow-up shots. The spiral fluted design adds both a striking aesthetic and functional benefits by reducing weight and increasing barrel cooling.

The A3 flat top upper receiver is crafted from solid billet 6000 series aluminum, providing superior strength and a precision fit. It is black hardcoat anodized to military specifications, enhancing its corrosion resistance and durability. The receiver comes with a forward assist and dust cover pre-installed for added reliability.

The .936" gas block is made from steel and features a black hardcoat anodized finish for enhanced protection against wear. A rifle-length gas tube ensures smooth cycling, while the slim profile Mlok handguard (rifle-length) provides a sleek, lightweight design for easy attachment of accessories.

This upper assembly is DPMS compatible and can be paired with any standard AR-10 lower. Please note, this upper does not come with a BCG or charging handle and is a custom-made limited edition item. Please allow 2-4 weeks for delivery.

Key Features:

• Barrel: 24" 416 stainless steel bull contour barrel with spiral fluting for weight reduction and heat dissipation.
• Chambered in .308 Win with a 1-10 RH twist for optimal performance with a variety of ammunition.
• X-treme muzzle brake installed to reduce recoil.
• A3 flat top upper receiver made from billet 6000 series aluminum, hardcoat anodized for durability.
• .936" gas block for rifle-length gas system.
• Mlok handguard (rifle length, slim profile) for a lightweight and durable accessory mounting platform.
• DPMS compatible.

Specifications:

• Barrel: 24" 416 stainless steel, spiral fluted, bull contour.
• Twist Rate: 1-10 RH.
• Muzzle: Threaded 5/8-24 with X-treme muzzle brake.
• Gas System: Rifle-length with .936" diameter gas block.
• Upper Receiver: A3 flat top, billet 6000 series aluminum, black hardcoat anodized.
• Handguard: Slim profile Mlok, rifle length.
• Compatibility: DPMS platform, does not include BCG or charging handle.
• Finish: Black hardcoat anodized.
• Note: Limited edition, 2-4 week ETA.

 Images may not be an exact representation of the product. 

FAQ

What lower receiver does it fit?

It fits DPMS-pattern (LR-308 style) .308 AR-10 lower receivers. Large-frame AR dimensions are not fully standardized, so verify your lower pattern before ordering.

Does it include a BCG and charging handle?

No. Add a .308 AR-10 bolt carrier group and charging handle separately or as add-ons on this page.

What twist rate does the barrel use?

A 1:10 twist, the standard choice for .308 Winchester that stabilizes common 150-175 gr loads.

Related: .308 AR-10 uppers · all AR-10 upper assemblies · .30 cal suppressors