One Horse .300 AAC Blackout Threaded AR Barrel 7.5in Medium Pistol Length 1-7 Twist 5/8x24 Black. 300 AAC Blackout Threaded AR Barrel. These AR15 Barrels from the expert product specialists at One Horse are fashioned using heavy duty and efficient components in order to provide you with a product which is going to be effective for many years. Designed utilizing some of the very best attainable substances and design these AR15 Barrels from the product experts at One Horse will last an incredibly long time. One Horse has been generating top quality products for a very long time and the One Horse .300 AAC Blackout Threaded AR Barrel is their very own approach to showing you exactly how much they are concerned. At OpticsPlanet we make it our responsibility to purchase the best product for all of your requirements and exhibiting the One Horse .300 AAC Blackout Threaded AR Barrel is a thing that we are happy to offer. Specifications for One Horse .300 AAC Blackout Threaded AR Barrel: Manufacturer: One Horse Color: Black Fabric/Material: 4150 Steel Caliber: .300 AAC Blackout Barrel Profile: Medium Gas System Length: Pistol Length Gun Make: AR Platform Gun Model: AR-15 Package Contents: One Horse 10.5" 300aac Barrel Pistol Gas 1:7 Twist One Horse OH-BR08: .300 AAC Blackout Threaded AR Barrel 7.5in Medium Pistol Length 1-7 Twist 5/8x24 Black