Silverback MDRX Hop Up Unit

MDRX Hop Up unit Polycarbonate hop-up unit for AEG hop-up rubbers, TCD ring design, incremental “click” adjustments using 2 ball plungers, 36 positions ranging from 0 up to 750 µm with the low nub (standard bbs configuration), and from 500 up to 1250 µm with the high nub (heavy bbs configuration).