AR-15 complete uppers, assuming they come with a bolt carrier group, will have everything you need to pair to a lower in order to complete a

AR build kits often come with everything you need minus the lower receiver, since that is the AR part that is considered the actual firearm,

AR 15 build kits can represent a great way to save time and effort and potentially even money when you want to build a rifle from scratch. T

There’s far more to bolt carrier groups than standard mil-spec phosphate finishes. Some bolt carrier groups are treated with advanced

The attractive aspect of AR 15 build kits is that they come with everything you need minus the lower receiver to complete a finished rifle.