The Proof Research Q Fix pre-fit barrel is a carbon fiber barrel chambered in 308 Win, made to upgrade your current rifle. It has a 20" barrel with a 10 twist rate, a configuration Proof lists in its...

This Proof Research pre-fit barrel is made for the Tikka T3X, giving T3X owners a 20.00" .308 WIN carbon fiber barrel in a Sendero contour with a 5/8x24 threaded muzzle. A pre-fit barrel is chambered...

The Proof Research PR10 PXT is a carbon fiber barrel for AR-10 builds, chambered in .308 WIN with a 20.00" length. Proof's carbon fiber construction gives a high stiffness-to-weight ratio, taking...

This Proof Research PXT barrel blank gives custom builders and gunsmiths a 24.00" .308 caliber carbon fiber barrel to chamber and fit for a bolt-action build. The Sendero contour and 1.20" shank...

This Proof Research PXT barrel blank gives custom builders and gunsmiths a 24.00" .308 caliber carbon fiber barrel in a Sendero contour, with a 1:10 twist, to chamber and fit for a bolt-action build...

The Proof Research PR10 PXT is a carbon fiber barrel for AR-10 builds, chambered in .308 WIN with a 16.00" length. Proof's carbon fiber construction gives a high stiffness-to-weight ratio, taking...

This Barrett MRAD conversion kit switches a compatible MRAD rifle to 308 WIN with a 22" carbon fiber barrel.It lets MRAD owners change calibers for training or hunting without buying a second rifle...

PROOF Research PXT carbon fiber barrel blanks combine next-generation rifling technology with the lightweight performance and precision that have defined PROOF barrels for years. PXT- PROOF...

This Proof Research PXT carbon fiber bolt-action barrel is chambered in 308 with a 22" Sendero Light contour.Carbon fiber construction cuts weight while supporting accuracy, a strong foundation for a...

Currently offered for Remington 700 actions only - 416R Stainless steel core - Button rifled - Includes muzzle end thread protector - Weight estimate: between 2lb to 2lb 15oz - Both Sporter and...

PROOF Research PXT carbon fiber barrel blanks combine next-generation rifling technology with the lightweight performance and precision that have defined PROOF barrels for years. PXT- PROOF...

The Primary Weapons UXR-CK-308-14 UXR Conversion Kit in .308 Winchester delivers a flexible caliber-change solution for the PWS UXR platform. This kit centers around a 14.5" barrel with a threaded...