M_P

I'm pretty set on WE for mine (once I can afford it) although the LM4 is a lot less likely to break, there's no doubt in my mind that it still eventually will, and WE parts are a load easier to get hold of, as well as being cheaper.

Also, more realistic action? Whut?

The WE internals aren't particularly realistic, especially in the trigger area when compared to the kwa or WAs, the bolt carrier also doesn't go far enough forward to cover the entirety of the ejection port. Having had a look, parts dont seem to be too bad to get for the lm4, might just mean having to order from abroad as it takes the KSC internals. The hardest part is finding an lm4 in stock lol

The ejection port gap isn't that big but i'd probably alway find it frustrating nonetheless.