Proof Research

Bolt-Action 243 Caliber Carbon Fiber Barrels - 243 Caliber 7.5 Twist 24" Carbon Fiber Sendero Barrel

All Proof Research barrels
Proof Research Bolt-Action 243 Caliber Carbon Fiber Barrels - 243 Caliber 7.5 Twist 24'''' Carbon Fiber Sendero Barrel - Barrel for AR-15 - view 1
Proof Research Bolt-Action 243 Caliber Carbon Fiber Barrels - 243 Caliber 7.5 Twist 24'''' Carbon Fiber Sendero Barrel - Barrel for AR-15 - view 2
Proof Research Bolt-Action 243 Caliber Carbon Fiber Barrels - 243 Caliber 7.5 Twist 24'''' Carbon Fiber Sendero Barrel - Barrel for AR-15 - view 3
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Proof Research

Overview

The Proof Research 24" carbon fiber Sendero barrel in .243 Win is designed for precision shooting, offering a lightweight yet robust option for your build. The 7.5 twist rate enhances stability and accuracy, making it well-suited for various bullet weights and types. This barrel is commonly found in builds focused on long-range shooting, where reduced weight and improved thermal performance are essential.

Specifications

MPN104675
Caliber.243 Win
Barrel Length24

Available Merchants(6)

Prices checked

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Ammunition Depot logo
Ammunition Depot
~$28.90 est. shipping
Shipping Speed
In Stock
$732
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Brownells logo
Brownells
Free shipping
Shipping Speed
In Stock
$899
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Optics Planet logo
Optics Planet
Free shipping
Shipping Speed
In Stock
$899
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BattleHawk Armory logo
BattleHawk Armory
Shipping varies
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In Stock
$899
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Palmetto State Armory logo
Palmetto State Armory
Free shipping
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In Stock
$900
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Classic Firearms logo
Classic Firearms
Shipping varies
Shipping Speed
Out of Stock
$899
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Price and stock

Availability is good for the Proof Research Bolt-Action 243 Caliber Carbon Fiber Barrels - 243 Caliber 7.5 Twist 24" Carbon Fiber Sendero Barrel: it was in stock at one retailer or another nearly every day in September 2026, and today 5 of the 6 retailers we track have it in stock. Prices barely moved in September 2026, holding around $732.49, so there haven't been real sales lately. Buying today, the lowest price is $732.49 at Ammunition Depot, which matches the best price we saw in September.

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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 →

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