Need more hop

[SMD]

hey guys im just wondering
i have a vfc sr15
i can get 125 feet effectivly with no problem
thats with the stock hop up

im wondering how to get more back spin to increase range cuz my
buddy has the same gun i have
but his can shoot 200 plus no problem
he said he has put in
an r hop (idk what that is)
wondering i need more range
what hop unit is best what type of nub bucking do i need

[Deathfox]

A TM hop-up and a Element H-nub will increase range quite a bit. If your still not satisfied. Get a new cylinder set (gaurder or systema). And that will make things a lot more consistent and increase range. But getting a TM hop-up will help A LOT