Proof Research PR10 .308 Winchester AR-10 Barrel - Intermediate Length - 16" - Carbon Fiber

The Proof Research PR10 in .308 Winchester with a genuine 16-inch carbon-fiber-wrapped barrel and intermediate-length gas system gives AR-10 builders a non-NFA-length option without the weight of an all-steel barrel.

Features:

• 16" barrel chambered in .308 Winchester, 1/8 twist rate
• aerospace-grade carbon fiber wrapped over a precision stainless steel liner for the complete barrel assembly
• Intermediate Length gas system length, dimpled for a set-screw gas block for simple alignment
• Standard 0.750" gas block journal diameter for compatibility with most aftermarket gas blocks
• Cut rifled for genuine accuracy and a long service life
• Threaded muzzle for mounting a suppressor or muzzle device
• 5/8x24 threaded muzzle for .30-caliber suppressors and muzzle devices

Wrapping the barrel in carbon fiber over a thin steel liner trims real weight from the front of the rifle compared to an all-steel barrel of the same length and contour, while the carbon fiber jacket also helps dissipate heat during strings of fire.

The intermediate-length gas system is Proof Research's own designation for this 16-inch .308 configuration, tuned to cycle reliably without the harsher impulse a standard carbine-length AR-10 gas system can produce at this barrel length.

Proof Research has manufactured carbon-fiber-wrapped barrels since 2010, and its PR15 and PR10 lines reflect that same barrel-making expertise applied to the AR-15 and AR-10 platforms specifically for builders and gunsmiths.