Hop-Up Units

A full metal hop-up unit from Ultimate. Features an innovative o-ring that improves the seal between the front of the gearbox and the hop-up unit....

A replacement c-clip for most brands of hop-up unit. Made by Ultimate (Lonex). Blue in colour.

A full metal hop-up unit from Ultimate.The adjustment mechanism must be assembled by the user and offers a nice tight adjustment once fully assembl...

A full metal hop-up unit from Ultimate. The adjustment mechanism must be assembled by the user and offers a nice tight adjustment once fully assem...