Defiance Ruckus Shouldered Prefit Carbon Fiber Barrels - 6.5mm Creedmoor 1-8" Twist 22" Sendero Contour

All Proof Research barrels
Proof Research Defiance Ruckus Shouldered Prefit Carbon Fiber Barrels - 6.5mm Creedmoor 1-8'''' Twist 22'''' Sendero Contour - Barrel for AR-15 - view 1
Proof Research Defiance Ruckus Shouldered Prefit Carbon Fiber Barrels - 6.5mm Creedmoor 1-8'''' Twist 22'''' Sendero Contour - Barrel for AR-15 - view 2
Buy Now

Proof Research

Overview

The Defiance Ruckus Shouldered Prefit Carbon Fiber Barrel in 6.5mm Creedmoor features a 1:8 twist rate, which optimally stabilizes a variety of bullet weights for improved accuracy and performance. With a barrel length of 22 inches, it strikes a balance between velocity and maneuverability, making it suitable for precision shooting applications. This barrel is often found in long-range builds where weight savings from the carbon fiber construction are crucial without sacrificing rigidity or performance.

Specifications

MPN123171
Twist Rate1:8
Barrel Length8
Caliber6.5 Creedmoor

Available Merchants(5)

Prices checked

Price Alert

Get an email if the price drops 10% or more.
Ammunition Depot logo
Ammunition Depot
~$28.90 est. shipping
Shipping Speed
In Stock
$816
BattleHawk Armory logo
BattleHawk Armory
Shipping varies
Shipping Speed
In Stock
$879
Palmetto State Armory logo
Palmetto State Armory
Free shipping
Shipping Speed
In Stock
$880
Brownells logo
Brownells
Free shipping
Shipping Speed
In Stock
$999
Optics Planet logo
Optics Planet
Free shipping
Shipping Speed
In Stock
$999

Build history on GunPartPicker

Builders on GunPartPicker first added the Proof Research Defiance Ruckus Shouldered Prefit Carbon Fiber Barrels - 6.5mm Creedmoor 1-8" Twist 22" Sendero Contour to a build in May 2026.

Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today all 5 retailers we track have it in stock. Prices barely moved in September 2026, holding around $815.99, so there haven't been real sales lately. Buying today, the lowest price is $815.99 at Ammunition Depot, which matches the best price we saw in September.

Trending barrels →

Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers

Not sure which barrel to pick?

We ranked every barrel by how often it shows up in real builds on GunPartPicker.

Read the guide: AR-15 Barrel Length & Brand Report →

Review this product

Share your thoughts with other customers

Be the first to review

No reviews yet. Be the first to review this product!