I want a G36C but am unsure of which to get. I am choosing either an SRC gen 3 or a WE G39C gas blowback. I have found the SRC for £150 and the WE for about £200. I live in the UK so is there anywhere that does it cheaper and which of there should I get - I like full metal heavyweight guns - although I do understand a real G36C is actually a polymer.