Rainier Arms Match 6mm ARC Barrel Silver 12 in. We are able to reach our goal by sourcing a very high end barrel blank at an affordable price. We start off using a high precision match blank machine it to the highest quality and matched with our limited-life time warranty you have a barrel that is the best value hands down in the industry. Specifications for Rainier Arms Match 6mm ARC Barrel: Manufacturer: Rainier Arms Color: Silver Finish: Satin Caliber: 6mm ARC Threads per Inch: 5/8x24 Barrel Material: Stainless Steel Flutes: No Gun Make: AR Platform Gun Model: AR-15 Gas Block Journal Size-Length: 1 in Features of Rainier Arms Match 6mm ARC Barrel Stainless Steel Match Grade Blank Twist: 1:7.5 Thread Pitch: 5/8 x 24 .750 Gas Block Seat 6ARC Chamber Rifle +2 Length Gas System M4 Feed Ramps Proprietary Contour Bead Blasted Finish Weight: 3.59 lbs Package Contents: Rainier Arms Match 6mm ARC Barrel What firearm models does the manufacturer say Rainier Arms Match 6mm ARC Barrel is compatible with? The manufacturer says that Rainier Arms Match 6mm ARC Barrel is compatible with AR-15Rainier Arms RAB-M-6ARC-12-M-NF-SAT: Match 6mm ARC Barrel Silver 12 in