Hi!
I impulse bought the new fancy schmancy Marui M40A5.
It's pretty cool! Still ABS with aluminum parts, but the flash hider and front rail feels CNC'd I guess? They have that sort-of-sticky matte feel. Hard to describe.
The bolt is ridiculously easy to work. Easier than the Marui L96 or VSR-10, and the short pull makes it extremely fast. Trigger is crisp as ever.
Hop up adjustment is smooth without clicks, so no worries there.
I'll the pictures do the talking!
EDIT: Uploading photos here suuuuuuuuuucks still ;P
So here's a link:
http://imgur.com/a/U2eog