Having some minor issues with the mags though. When I go to fill with green gas the magazine acts like it’s full and leaks all the gas back out, like it would with all other Marui magazines when full of gas.
Grab a small packet of lees precision o-rings for fill valves. Super easy install, just shove em in around the fill valve and sorted. No pissing gas from the mags when filling and in my opinion, no need for the green gas mod either.