Thanks guys. It's not "futuristic", but yeah not WWII. The shotty could be old though... not sure of the date/manufacturer but I modeled it off Mel's sawed-off in Mad Max.
http://www.modelguns.co.uk/mad_max2.htm
The Knights Armament peep sight is present day, "SL-8 Short Mounting Base With 600 Meter Flip-Up Rear Sight".
http://www.sr-25.com/knights2.htm