The Rainier Arms Select Barrels have always been one of the best Bang-For-Your-Buck barrels out there. They are all 1:8 twist, feature a 5-groove polygonal rifling and have a limited lifetime warranty. They’ll even give you a full refund if it doesn’t outshoot your similarly priced barrels.

Currently they have both the 14.5″ and 16″ barrels in-stock which are perfect for most AR build needs. They do offer a 10″ and 18″ version too but you’ll have to sign up for email notifications for when those are back in-stock. Best news of all … these barrels are just $170 and right now come with FREE SHIPPING. Snag one now while you can at