Depends entirely upon the organiser. Warzone do 'milsim' and you can wear what you like within their colour restrictions (green or desert). Combat Airsoft Group on the other hand specify a particular camo for the NATO team, almost always Multicam.
After nearly a year of searching for the right deal (e.g. less than $600!) I snagged a Daniel Defense RIS2 in FDE this weekend, now I just have to wait for my mule to sneak it past customs
That's a completely different type of helmet made by a company called Team Wendy, Ops Core haven't changed the design of their rails at all.
There are adapters for Team Wendy rails, but as far as I know only real steel ones so expect to pay a bit of a premium.
just a reproduction of a different type of Ops Core helmet, the Ops Core bump helmets have diamond shaped holes and Ops Core carbon helmets have round ones.
From what I've heard (all second hand info of course) the guys actually using them much prefer the Patagonia stuff, it's supposedly better cut and the VIKP system is much more comfortable.
They're basically my holy grail, just don't want to pay holy grail prices!
even short barrelled gas guns can Joule creep, my TM MP7 for example shoots 320 with a .20 and 300 with a .28, 110mm barrel, just MASSIVELY over volumed with the amount of gas that gets released.