Let us also consider the newbies budget for said m4 purchase. In a perfect world where money is of no issues then run out and find a vfc or G&P in the flavour of your choosing, aside from that expect that smaller things will be of lesser quality and indurance when it comes to the lesser named rifles. A king arms rifle can be made into a reliable shooter tho, few internals, shim job and some proper lube and go throw some bb's and don't worry about it. It ultimately is about what your willing to pay, not about what you want really.
he's right ^ vfc and g&p are the smexy rifles to look at if you got the coin, but the king arms will work
I'm a g&p fan ( little biased lol )