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 weight off the front of the rifle so it balances better and stays easier to carry and hold steady.

PXT is Proof's Exponential Twist rifling, a rework of conventional rifling geometry and twist progression that lowers engraving force, reduces throat erosion and eases the bullet's entry into the rifling. A 16.00" .308 WIN barrel with an intermediate-length gas system is a popular pairing for a compact AR-10, keeping the rifle short and quick to the shoulder while running a gas length matched to the barrel.

• Brand: Proof Research
• Model: PR10 PXT
• Platform: AR-10
• Caliber: .308 WIN
• Barrel Length: 16.00"
• Gas System: Intermediate Length
• Construction: Carbon Fiber, PXT Rifling