To Ponyboy: laws can put you easily in trouble in Italy, exactely like in USA to have a preban or a postban in CA. It is all licenced and registered, but laws are better if compared to some states of the USA (always CA...). The only thing that doesn't exist is FFL Class III and we're not allowed handguns in 9 Para.
To Halfcocked: Yeah, my first! No I don't mind to tell you: about 1350 USD. A price for a preban Colt with bayo lugs and flashhider can arrive up to 2500 USD!!!
To vicg1: recently (4 or 5 years ago) we're allowed in .223 with some limitation:
-no military surplus
-no AP bullets
-no tracers
if the LEOs will inspect your ammo cache or mag and find those kind of cartridges, the rifle (classified for HUNTING) will be considered as WAR WEAPON, and you are arrested on the spot...