One Horse Ar15 Complete Upper 7.5in 300Aac. 5" 300aac was made to be the ideal product for anybody looking for an exceptional choice.. These AR15 Upper Receivers from the expert product specialists at One Horse are designed working with heavy duty and efficient resources in order to provide you with a product which will be powerful for countless years. Designed using some of the very best attainable components and construction these AR15 Upper Receivers from the product experts at One Horse can last an incredibly lengthy time. One Horse has been developing superior quality products for a very long time and the One Horse Ar15 Complete Upper 7.5" 300aac is their approach to revealing just how much they are concerned. At OpticsPlanet we ensure that it is our responsibility to get the most suitable solution for all of your needs and featuring the One Horse Ar15 Complete Upper 7.5" 300aac is something that we're delighted to offer. Specifications for One Horse Ar15 Complete Upper 7.5" 300aac: Manufacturer: One Horse Caliber: .300 AAC Blackout Barrel Length: 7.5 in Finish: Matte Color: Black Fabric/Material: Steel Additional Features: 1-7in. Twist Package Contents: One Horse Ar15 Complete Upper 7.5" 300aac