Proof Research 20″ 22 ARC Carbon Fiber 1:7 Rifle+1 AR-15 Barrel - 138748

Proof Research has designed its AR barrels with the goal of improving performance and reliability in the AR platform. Their Caliber Matched Gas System (CAMGAS) results in a gas system that is tuned specifically for the cartridge and length of the barrel. The AR-15 Platform was originally designed around the 223REM and 5.56NATO cartridges, and the AR-10 was designed around the 308 Win/7.62NATO round. With higher-performance cartridges such as the 22 Nosler and 6.5 Creedmoor, the bore pressure remains higher further down the barrel. By moving the port location, Proof Research ensures that the gas system pressure is the same as what the AR platforms were originally designed around. The result is a recoil impulse that is noticeably softer, less fouling in the receiver, increased reliability of extraction and less wear and tear on brass. This helps keep you on target and shooting while taking advantage of the latest high-performance cartridges.

Features:

• Lightweight: Up to 64% lighter than traditional steel barrels of similar contour.
• Extreme Temperature Resistance: Improved heat dissipation for cooler and longer-lasting barrels.
• Unprecedented durability: Wrapped with high-strength, aerospace-grade carbon fiber impregnated with a proprietary matrix resin.

Specifications:

• Length: 20″
• Caliber: 22 ARC
• Twist Rate: 1 – 7
• Gas System Length: Rifle
• Gas Journal Diameter: .750
• MuzzleThreading: 1/2-28
• Material: Carbon Fiber
• Weight: 2lbs-1oz