Proof Research PR15 6mm ARC AR-15 Barrel - Intermediate Length - Stainless - 14.5"

The Proof Research PR15 is an all-steel AR-15 barrel built from 416R stainless steel for durable, consistent accuracy. Built for 6mm ARC builds, hunting, and range use, this stainless barrel delivers a CAMGAS tuned gas port and a 5/8x24 threaded muzzle.

Features:

• 416R stainless steel
• 6mm ARC chamber
• Intermediate-length gas system
• Gas journal for .750 gas blocks
• 5/8x24 threaded muzzle
• CAMGAS tuned gas port
• Made in the USA

Proof builds its AR barrels with the goal of improving performance and reliability in the platform. Stainless steel resists corrosion and holds accuracy through repeated heat cycles, which makes it a solid choice for shooters who prefer a traditional all-steel barrel at a lower price than carbon fiber.

At 14.5 inches with an intermediate-length gas system, the barrel keeps the rifle fast handling while softening the recoil impulse compared with a carbine-length system. The CAMGAS process tunes the gas port to the cartridge and gas system length, so the rifle cycles smoothly with the shorter, lighter ARC case. The 5/8x24 muzzle threads accept flash hiders, compensators, and suppressor mounts, and the barrel arrives chambered and ready to install on an AR-15 upper receiver. The 6mm ARC cartridge offers flat trajectory and mild recoil for deer, hogs, and long-range target work.

Proof Research, based in Columbia Falls, Montana, pioneered carbon fiber wrapped rifle barrels and manufactures its barrels in the USA.