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6mm ARC 1-7.5 Twist 20" Carbon Fiber Barrel

6mm ARC 1-7.5 Twist 20" Carbon Fiber Barrel

Proof Research · Barrels

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Best price

$949.00at Brownells

In stock checked Oct 1, 2026

Buy at Brownells

Compare 7 stores

Where to buy

StorePriceAvailabilityBuyAdd to build
Brownells Best price $949.00checked Oct 1, 2026 In stock Buy at Brownells
MidwayUSA $949.05Salechecked Oct 1, 2026 In stock Buy at MidwayUSA
Ammunition Depot $951.49checked Oct 1, 2026 In stock Buy at Ammunition Depot
OpticsPlanet $999.00Salechecked Oct 1, 2026 In stock Buy at OpticsPlanet
GunMag Warehouse $999.99checked Oct 1, 2026 In stock Buy at GunMag Warehouse
Battlehawk Armory $899.25Salechecked Oct 1, 2026 Check store Buy at Battlehawk Armory
Palmetto State Armory $999.99checked Oct 1, 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: $949.00 at Brownells. Dashed line = out of stock. Tracking since Sep 27, 2026.

Show the prices as a table
StoreLatestLowestHighest
Ammunition Depot$951.49$951.49$951.49
Battlehawk Armory$899.25$899.25$899.25
Brownells$949.00$949.00$949.00
GunMag Warehouse$999.99$999.99$999.99
MidwayUSA$949.05$949.05$999.00
OpticsPlanet$999.00$999.00$999.00
Palmetto State Armory$999.99$999.99$999.99

Since Sep 27, 2026.

About this part

The 6mm ARC 1-7.5 Twist 20" Carbon Fiber Barrel is a 2E+1" 6mm ARC barrel from Proof Research. It's sold by 7 stores (5 in stock), from $899.25 to $999.99. The lowest in-stock price in the last 30 days was $949.00 at Brownells.

Fits and works with

Caliber
6mm ARC · Shop matching ammo
Bolt
6.5 Grendel / 6mm ARC · Bolt carrier groups
Barrel length
2E+1" · Handguards

Specifications

Manufacturer
Proof Research
Platform
AR-15
Caliber
6mm ARC
Barrel length
20"

From the manufacturer

PROOF Research's match-grade carbon fiber barrels are stronger, lighter, and as accurate as the finest precision steel barrels and will maintain their performance in the harshest conditions. Up to 64% lighter than traditional steel barrels Match-grade accuracy Improved heat dissipation for cooler and longer lasting barrels No point-of-impact shift during high-volume fire Reduced harmonic barrel vibration Unprecedented durability Mfg: Proof Research

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$949.00 at Brownells
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