Madbull Ultimate Rotary Hopup Unit(3in1) with 60% Blue Bucking.
Artikelnummer: SW-AC12616Another practical innovation from MADBULL, this new metal hop-up unit / chamber has 3 functions in 1! Can accommodate internal LED unit for tracer function, chamber lock function to prevent BBs from falling out during reloads, and a new adjustment design that stays in place and won't shift during full auto fire.