Wilson Combat Match Grade Barrel AR-15 6mm ARC 18 in Tactical Hunter Intermediate Length 1-7.5 Twist 5/8x24 Threaded Glass Bead. These proven barrels feature a hand-polished bore and feedramps and then complete a rigorous final inspection process that ensures your new barrel will meet your most demanding expectations. All barrels feature crisp CNC markings precision muzzle crown and a chamber and gas port optimized for reliability. 6mm ARC The 6mm ARC was designed by Hornady to be the highest performance long-range cartridge available in a standard AR platform rifle. Initially tested and fielded by US Special Operations forces the 6mm ARC utilizes efficient high-BC bullets to deliver unprecedented long-range performance with a wide variety of available bullets. Commercial 6mm ARC loads feature bullets selected to deliver ideal performance for hunting match shooting and personal protection applications. The 6mm ARC uses commonly available 6.5 Grendel magazines/bolts. Wilson Combat Tactical Hunter Profile Barrels The Tactical Hunter is the ideal large bore AR for hunting or general tactical and defensive use. The threaded match-grade button rifled barrel is tuned for suppressed or non-suppressed shooting. Specifications for Wilson Combat 6mm ARC Tactical Hunter Match Grade Barrel: Manufacturer: Wilson Combat Color: Stainless Finish: Glass Bead Fabric/Material: Stainless Steel Caliber: 6mm ARC Barrel Length: 18 in Barrel Profile: Tactical Hunter Gas System Length: Intermediate Threads per Inch: 5/8x24 Barrel Twist Rate: 1-7.5 Barrel Material: 416R Stainless Steel Flutes: Yes Gun Make: AR Platform Gun Model: AR-15 Weight: 28.9 oz Gas System: Intermediate Package Contents: Wilson Combat 6mm ARC Tactical Hunter Match Grade Barrel What firearm models does the manufacturer say Wilson Combat 6mm ARC Tactical Hunter Match Grade Barrel is compatible with? The manufacturer says that Wilson Combat 6mm ARC Tactical Hunter Match Grade Barrel is compatible with AR-15Wilson Combat TR-6ATHIG18FT7-5: Match Grade Barrel AR-15 6mm ARC 18 in Tactical Hunter Intermediate Length 1-7.5 Twist 5/8x24 Threaded Glass Bead