did you look at midway, cheaper than dirt,sportmans guide, ATI, combat stocks?
also i don't know how much if anything is out for them yet. i have heard them classified like the 710,770 as throw a way guns.
im not say they are i havent had a chance to fire one yet.
good luck on you quest to find stuff
One Shot One Kill!
It isn't FT-LBS that kill-Its Traumatic Shock To The CentralNervous System!