Proof Research Barrett MRAD Steel .308 Winchester Threaded Rifle Barrel 24 inch 1-10 Twist 5/8-24 Silver. Recently MRADs fitted with PROOF carbon barrels chambered in 300 PRC were adopted by the United States Department of Defense. Barrels are easily replaced on this modular rifle system with no specialized tools or training required. Pre-fits will fit all current generation rifles without barrel screw cross slots in barrel extension. Their MRAD barrels feature a straight taper contour with a 1.00in diameter muzzle and include the barrel extension pre installed and complete matching bolt head. Specifications for Proof Research Barrett MRAD Steel .308 Winchester Threaded Rifle Barrel: Manufacturer: Proof Research Color: Silver Finish: Carbon Fiber Caliber: .308 Winchester Projectile Caliber: .308 Caliber Barrel Length: 24 in Barrel Material: Steel Barrel Twist Rate: 1-10 Barrel Profile: Sendero Threads per Inch: 5/8x24 Gun Make: Barrett Gun Model: Barrett MRAD Weight: 7.5 lb Gun Type: Rifle Flutes: No Application: Shooting Features of Proof Research Barrett MRAD Steel .308 Winchester Threaded Rifle Barrel Lightweight - Up to 64percent 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 Long-Lasting - Excellent erosion wear characteristics and corrosion resistance Extreme Pressure Resistance - An optimum combination of high tensile strength along with requisite toughness to withstand extreme chamber pressures encountered during firing Package Contents: Proof Research Barrett MRAD Steel .308 Winchester Threaded Rifle Barrel What firearm models does the manufacturer say Proof Research Barrett MRAD Steel .308 Winchester Threaded Rifle Barrel is compatible with? The manufacturer says that Proof Research Barrett MRAD Steel .308 Winchester Threaded Rifle Barrel is compatible with Barrett MRADProof Research 133682: Barrett MRAD Steel .308 Winchester Threaded Rifle Barrel 24 inch 1-10 Twist 5/8-24 Silver 133682