Dont get 1911 if you dont want constantly complain of gas and outside temperature. M9 has a big mag with gas enough for 2 loads. Cons: make sure you have big hands :)

Handgun as primary, forget it in places where high caps are allowed. You will be constantly outgunned.

That's piss poor advice. There is nothing wrong with 1911s.
OP your best advice is get age verified and check the classifieds/retailers for a TM (not clearshit lower)