Krytac Trident Rotary Hopper Unit

The Krytac rotary hop-up unit is an improved, affordable polymer hop-up chamber with circumferential adjustment for small arms M4/M16 weapons (Marui and compatible models). The circumferential adjustment reduces hop "wandering", a design familiar from ProWin units, for example. The Krytac unit features a knurled adjustment roller and a long hop-up pusher arm, which keep the twist generated by the hop-up stable and allow for precise fine-tuning of the trajectory.