Faxon Firearms ARAK-21 XRS 7.62x39mm 30+1 16" Black Anodized Match Grade Threaded Barrel, Black Anodized Picatinny Rail Aluminum Receiver, Black Synthetic Magpul SL Stock, Black Magpul Grip, Ambidextrous The Faxon ARAK-21 XRS features a Magpul SL Stock; Magpul MOE Grip; ambidextrous safety/selector; ambidextrous charging handle; self-contained firing pin retention system; full length picatinny rail on the top and three additional rails on the muzzle end of the receiver, making it a full M4 style quad rail upper. Includes magazine and BAU removal tools.