Proof Research 100042 AR-Style Barrel 6.5 Creedmoor 20\" Rifle +2 Length Gas System 1:8\" Twist 4 Grooves, 5/8-24 tpi, Carbon Fiber Wrapped
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Proof Research
Overview
The Proof Research 100042 AR-Style Barrel in 6.5 Creedmoor is designed for precision shooting, featuring a 20-inch length that allows for optimal velocity and accuracy. Its Rifle +2 gas system enhances reliability and cycling in semi-automatic builds, while the 1:8 twist rate and four grooves stabilize a wide range of bullet weights for improved performance. This barrel is commonly found in long-range precision builds, where accuracy and consistency are paramount.
Specifications
Proof Research 100042 AR-Style Barrel 6.5 Creedmoor 20\" Rifle +2 Length Gas System 1:8\" Twist 4 Grooves, 5/8-24 tpi, Carbon Fiber Wrapped
Available Merchants(7)
Prices checked
Price Alert
Build history on GunPartPicker
Builders on GunPartPicker first added the Proof Research 100042 AR-Style Barrel 6.5 Creedmoor 20\" Rifle +2 Length Gas System 1:8\" Twist 4 Grooves, 5/8-24 tpi, Carbon Fiber Wrapped to a build in February 2026.
It was hard to find in September 2026, in stock on only 10 of the 26 days we checked, and today 4 of the 7 retailers we track have it in stock. It dipped to $829.99 at Sportsmans Outdoor Superstore for a stretch in September 2026, well under its usual $939, so sales do come around. Buying today, the lowest price is $999 at Optics Planet, above September's low of $829.99, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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