Proof Research Produces Traditional Steel Barrels with Excellent Corrosion Resistance

Proof Research Barrels are high quality barrels which are made to the very highest quality standards. The design and manufacturing processes which are used are state-of-the-art and go above and beyond. Each barrel produced will exemplify their founders' relentless pursuit of excellence. The ultimate goal of Proof Research is to provide you with the performance and quality you have been missing whether it's to shoot your best groups, compete at the highest levels, or bag that elusive animal. Whatever your choice of shooting discipline, Proof Research has the finest barrels in the firearms industry.

Proof Research AR Type Barrel Specifications and Features:

• Proof Research Item Number: 100462
• Traditional Steel AR-15 Type Barrel
• .223 Wylde Chamber (accepts 5.56 NATO or .223 Remington)
• 20" Length
• 1:7" Twist Rate
• Rifle Length Gas System
• .750 Gas Journal Diameter
• Muzzle Threaded 1/2x28 TPI
• Port Size: .089
• Made from 416R Stainless Steel
• Excellent Erosion Wear Characteristics
• Corrosion Resistant
• Extreme Pressure Resistance
• High Tensile Strength
• Withstands Extreme Chamber Pressures During Firing
• Weight: 3 lbs 3 oz
• Natural Stainless Finish