AW Tactical gets to show us the features of the Arcturus Airsoft RKC-74 Custom AEG available at their store... "The Arcturus AK series are state of the art AK AEGs that offer a more upgraded platform. With a host of modern conveniences such as M-Lok rails, Picatinny rails, and adjustable buttstock, it makes for a ease of handling. The RKC-74 is no exception."