AR-10 – .308

Description

AR-10 .308 Winchester Custom Barrel

We make this AR-10 barrel in .308 Winchester. Choose your barrel material, twist, length, gas-system options and finish from the product choices.

Why .308 Winchester?

.308 Winchester has been around for decades, and one of the biggest reasons people keep choosing it is the selection of factory ammunition. It’s used for everything from ordinary range shooting to precision matches and hunting.

You’ll often see .308 Winchester mentioned alongside 7.62×51 NATO. They are closely related but follow different specifications. Check your barrel markings and the manufacturer’s ammunition guidance rather than assuming the names are interchangeable in every rifle.

Customize Your AR-10 Barrel

• Material and twist: Chrome-moly 1:10, stainless 1:10, or chrome-moly 1:8. The available combinations are shown in the material selector.
• Length and muzzle: Choose from the barrel lengths and muzzle finishes offered for your selection.
• Gas system and barrel profile: Review the gas-system, profile and gas-block size choices. Some options depend on other selections.
• Finishing: Choose from the fluting and finishing options shown for this barrel.
• Related components: Check the matching-bolt, gas-tube and gas-block choices, including what’s optional and what’s supplied separately.

Before You Order

• Confirm your platform: Not every AR-10-pattern rifle uses identical components. Check your receiver, bolt-carrier group and other relevant parts.
• Check the chambering: Order ammunition and compatible components for .308 Winchester, not another cartridge with a similar name.
• Review your options: This is a made-to-order barrel. Confirm your selected specifications and any additional parts before checkout.

Barrel Options Explained

Chrome-moly (CM) and stainless steel (SS): CM needs protection from rust. SS resists corrosion better but still needs normal care. The available steel and rifling-twist combinations are shown in the product choices.

Twist rate: A marking such as 1:10 means the rifling makes one complete turn every ten inches. It doesn’t describe the barrel’s overall length.

Gas-system length: The options on this barrel include carbine-length (roughly 7 inches), mid-length (roughly 9 inches), rifle-length (roughly 12 inches) and magnum-length (roughly 14 inches). These names describe the nominal gas-system layout, not the barrel’s total length or the exact measured length of the tube.

What is a gas tube? In a conventional AR system, the gas block directs some gas through a small tube toward the action. A tube is a separate component from the barrel and gas block. If you need one with your order, review the Add Gas Tube? choice; the tube must correspond to the gas-system layout.

Barrel profile: Light, SOCOM and HBAR refer to the barrel’s outside shape and amount of material. Lighter profiles generally weigh less; heavier profiles have more material. The profile can also determine which gas-block mounting diameter appears among your choices.

Gas block and size: The gas block fits around a specific mounting area on the barrel. Measurements such as .750 and .875 inches refer to that outside diameter, not the caliber. Some selections offer non-adjustable and adjustable blocks, as well as None if you already have a suitable block. A matching diameter is important, but it doesn’t by itself guarantee complete-system compatibility.

Muzzle choices: A target crown is an unthreaded finish at the muzzle. The threaded choices on this product include 5/8×24; the thread specification must suit the intended compatible muzzle device. Magna Port refers to gas-venting cuts near the muzzle intended to help manage muzzle rise; it is not the same as a threaded attachment. Gill Cut is a specialty gill-style muzzle cut. Ask us about the current cut pattern rather than assuming it works like a standard crown, porting, or threads.

Q / SIG taper (optional, no extra taper charge): Standard 5/8×24 muzzle threads typically have a flat, 90-degree shoulder behind them. The Q / SIG option uses those same threads with a 25-degree angled shoulder instead. Certain Q- and SIG-style muzzle devices and suppressor mounts are made to seat against this taper, giving the mount its intended contact surface. Why choose it? It is a fitment choice: select 5/8×24 Threads + Q/SIG Taper if your specific mount calls for a 25-degree taper, or choose standard 5/8×24 threads if it calls for a flat shoulder. The taper does not change the thread size or automatically improve accuracy. There is no extra taper charge beyond any existing threading cost. Check your mount specifications or ask Deadshot if you are unsure.

Option combinations: Some muzzle finishes and fluting styles can’t be selected together. The order form shows which combinations are offered.

Barrel extension: The steel component at the rear of the barrel provides the surfaces where the bolt locks. It is different from the gas block.

Fluting and coatings: Fluting is machining along the outside of the barrel. Cerakote and other listed finishes affect appearance and surface protection.

What Happens After You Order?

We build the barrel to the specifications on your order. The current estimated production time is 3–8 weeks, not a guaranteed delivery date. If you need to change something or check an order, contact us as soon as possible with your order number.

Common Questions About This Barrel

Questions Before You Order?

Still comparing options? Our Barrel FAQs explain barrel materials, twist rates, common terminology, ordering and care.

Not sure what applies to your AR-10 .308 Winchester? Email us about this barrel or use our Contact page.

Returns and warranty

All sales are final by default. Discretionary return requests are reviewed individually and require prior approval. If a discretionary return is approved, a 25% restocking fee applies. A 15% cancellation fee applies after work has started. We evaluate manufacturing-defect concerns under our warranty; covered problems are addressed through an appropriate remedy. See our Refund Policy and Terms of Service.