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Defiance Ruckus Shouldered Prefit Stainless Steel Barrels - 6.5mm Creedmoor 1-8" Twist 26" Competition Contour

Proof Research · Barrels

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Defiance Ruckus Shouldered Prefit Stainless Steel Barrels - 6.5mm Creedmoor 1-8" Twist 26" Competition Contour

Best price

$649.00at Brownells

In stock Lowest in 30 dayschecked Nov 13, 2026

Buy at Brownells

Compare 5 stores

Fits and works with

Caliber
6.5 Creedmoor · Shop matching ammo
Bolt
AR-10 (.308 / 6.5 CM) · Bolt carrier groups
Barrel length
8" · Handguards

Specifications

Manufacturer
Proof Research
Color
Silver / Stainless
Platform
AR-10
Caliber
6.5 Creedmoor
Barrel length
8"

Where to buy

StorePriceAvailabilityBuyAdd to build
Brownells Best price 17.76% off · ends Nov 15 · exclusions apply $649.00checked Nov 13, 2026 In stock Buy at Brownells
OpticsPlanet $649.00Salechecked Nov 13, 2026 In stock Buy at OpticsPlanet
Battlehawk Armory $517.75Salechecked Nov 13, 2026 Check store Buy at Battlehawk Armory
Palmetto State Armory $579.99checked Nov 13, 2026 Check store Buy at Palmetto State Armory
GrabAGun $649.00Salechecked Nov 13, 2026 Check store Buy at GrabAGun

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: $649.00 at Brownells. Dashed line = out of stock. Tracking since Sep 27, 2026.

Show the prices as a table
StoreLatestLowestHighest
Battlehawk Armory$517.75$517.75$572.25
Brownells$649.00$649.00$649.00
GrabAGun$649.00$649.00$649.00
OpticsPlanet$649.00$649.00$649.00
Palmetto State Armory$579.99$559.99$579.99

Since Sep 27, 2026.

About this part

The Defiance Ruckus Shouldered Prefit Stainless Steel Barrels - 6.5mm Creedmoor 1-8" Twist 26" Competition Contour is an 8" 6.5 Creedmoor barrel from Proof Research. It's sold by 5 stores (2 in stock), from $517.75 to $649.00. The lowest in-stock price in the last 30 days was $649.00 at Brownells.

From the manufacturer

PROOF Research pre-fit carbon fiber & steel barrels for the Defiance Ruckus are to be installed in a simple operation requiring few specialized tools. Their pre-fit barrels are chambered and threaded for a simple install that require only a few specialized tools. Simply torque your barrel on, double check headspace with proper gauges and head to the range! Unprecedented accuracy and performance - it does not get much better than our Defiance Ruckus carbon fiber & steel pre-fit barrels. Long-Lastin Stainless Steel Barrels Extreme pressure resistance Double Stress Relieved 416R Stainless Steel PROOF drop-in barrels are designed to fit Mfg: Proof Research

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$649.00 at Brownells
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