Best hop unit for a G&P M16A3

[riddick 1811]

Re: Best hop unit for a G&P M16A3

remember if you go for the full madbull set up, your fps will more than likely go up by 40+fps if your standard barrel isnt a tightbore

my M16 came out of the box at 400 on a 0.2, so i'm going to get a smaller spring in it

I like the sound of an extra 40 fps on top, i'll get the madbul hop unit installed, with shark rubber and madbul tight bore