Zombie-hunting assault rifle with chainsaw bayonet
GRRZRRZRRZRRZRRZBOOM! If you're facing a zombie apocalypse, or more run-of-the-mill zombie massacre, grab the first commercially available chainsaw bayonet on a rifle built specifically for zombie slaying - the DoubleStar Zombie-X-AK-47. No price yet, but its less fancy DSC Zombie Slayer predecessor sells for $1,249.99, so expect the Zombie-X to be a bit pricier.
(But please if it's Kat from Zombie Strippers, please, watch your back and not her front.)