Rainier Arms Select 5.56 NATO AR-15 Barrel - 13.9"

Many have asked us to build a barrel with the same workmanship as our Match barrels while keeping it more affordable. 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 in 1:7 twist, use a 5 groove polygonal rifling, 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 Stainless Steel Match Grade Blank Length: 13.9" Twist: 1:7 Thread Pitch: 1/2 X 28 .750 Gas Block Seat 5.56 NATO Chamber 5 groove polygonal rifling Mid Gas System (Gas Tube Not Included) M4 Feed Ramps Proprietary Contour Nitride Finish Weight: 1 lb 12.8 oz