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Proof Research PR10 Carbon Fiber 18in 308 Win Rifle Length Rifle Barrel 30cal 0.875GB 10 Twist 5/8 x 24

Proof Research PR10 Carbon Fiber 18in 308 Win Rifle Length Rifle Barrel 30cal 0.875GB 10 Twist 5/8 x 24

Proof Research · Barrels

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Best price

$957.00at MidwayUSA

In stock Sale checked Nov 11, 2026

Buy at MidwayUSA

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Where to buy

StorePriceAvailabilityBuyAdd to build
MidwayUSA Best price $957.00Salechecked Nov 11, 2026 In stock Buy at MidwayUSA
OpticsPlanet $999.00Salechecked Nov 11, 2026 In stock Buy at OpticsPlanet
Brownells $999.99checked Nov 11, 2026 In stock Buy at Brownells
Battlehawk Armory $828.40Salechecked Nov 11, 2026 Check store Buy at Battlehawk Armory
GrabAGun $879.00Salechecked Nov 12, 2026 Check store Buy at GrabAGun
Dirty Bird $939.00checked Nov 11, 2026 Check store Buy at Dirty Bird
AR15Discounts $999.00checked Nov 11, 2026 Check store Buy at AR15Discounts
Classic Firearms $999.00checked Nov 11, 2026 Check store Buy at Classic Firearms
Palmetto State Armory $999.99checked Nov 11, 2026 Check store Buy at Palmetto State Armory

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

Lowest in-stock price in the last 30 days: $849.15 at MidwayUSA. Dashed line = out of stock. Tracking since Oct 12, 2026.

Show the prices as a table
StoreLatestLowestHighest
AR15Discounts$999.00$999.00$999.00
Battlehawk Armory$828.40$790.40$879.00
Brownells$999.99$999.99$999.99
Classic Firearms$999.00$999.00$999.00
Dirty Bird$939.00$939.00$939.00
GrabAGun$879.00$879.00$879.00
MidwayUSA$957.00$849.15$999.00
OpticsPlanet$999.00$999.00$999.00
Palmetto State Armory$999.99$999.99$1,109.99

Since Oct 12, 2026.

About this part

The Proof Research PR10 Carbon Fiber 18in 308 Win Rifle Length Rifle Barrel 30cal 0.875GB 10 Twist 5/8 x 24 is an 18" .308 / 7.62x51 barrel from Proof Research with a rifle gas system. It's sold by 9 stores (3 in stock), from $828.40 to $999.99. The lowest in-stock price in the last 30 days was $849.15 at MidwayUSA.

Fits and works with

Caliber
.308 / 7.62x51 · Shop matching ammo
Bolt
AR-10 (.308 / 6.5 CM) · Bolt carrier groups
Gas system
Rifle · Handguards
Muzzle thread
5/8x24 · Muzzle devices
Barrel length
18" · Handguards

Specifications

Manufacturer
Proof Research
Platform
AR-10
Caliber
.308 / 7.62
Gas system
Rifle
Barrel length
18"
Thread pattern
5/8 x 24

From the manufacturer

Proof Research PR10 Carbon Fiber 18in 308 Win Rifle Length Rifle Barrel 30cal 0.875GB 10 Twist 5/8 x 24. Through a unique manufacturing process these rifle barrels by Proof Research achieve both lightweight characteristics by weighing less and meeting functional specifications. One example of many of the practical applications of these Proof Research Rifle Barrels is the ability to forge a stronger-than-steel short-barreled impact weapon. While they are certainly lighter than steel barrels they will not absorb any additional weight. Proof Research barrels are the strongest and most durable of all the carbon fiber rifle barrels on the market. Get yours today and witness the difference a durable carbon fiber barrel can make in your shooting game. Specifications for Proof Research PR10 Carbon Fiber 308 Win Rifle Barrels: Manufacturer: Proof Research Color: Black/Silver Fabric/Material: Carbon Fiber Caliber: .308 Winchester Barrel Profile: Contour 0.875GB Gas System Length: Rifle Length Gas Block Journal Size-Diameter: .875 in Barrel Twist Rate: 1-10 Flutes: No Condition: New Firearms Threads Per Inch: 5/8x24 Package Contents: Proof Research PR10 Carbon Fiber 308 Win Rifle Barrels Proof Research PR10C180300DBB10B308W: PR10 Carbon Fiber 18in 308 Win Rifle Length Rifle Barrel 30cal 0.875GB 10 Twist 5/8 x 24

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$957.00 at MidwayUSA
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