So me and a buddy both just got metal geared variants of the hk416, and as much as I love it out of the box there’s no way I’m leaving it stock.
What I’d like from all you fine people is input on what I should be looking into installing into it to make it… more awesome. There’s a green o ring, hop up and an m90 or 100 spring on the cards already, but what else would one look at putting in it over an extended period of time with budget not being too critical. Also wanting to preserve accuracy over going nuts on fps.
Toying with the idea of getting an alloy retroarms gearbox and slowly assembling the internals.