This beautiful rifle from the Midwest fills the need for an affordable AR that you can trust to be built right. Chambered in 450 Bushmaster these Great Lakes Firearms AR rifles feature a 18 barrel in your choice of a beautiful 416r stainless steel or an ultrasmooth 4150 CRMOV black nitride finish with a 1:24 twist. The heavy barrel incorporates a midlength gas system with 0.750 Gas Block. The barrel is threaded in 916x24 and is fitted with a ported compensator. Each barrel is surrounded by a 15.25 6061 aluminum MLok handguard with a fulllength picatinny rail on top allowing you to attach the different accessories you may require. While this rifle features a 7075 Oversized Upper Receiver it weighs in at only 6.4lbs.