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The design with the arm pressing on the Nub is steel sheets with different thicknesses, which combine to create the desired elasticity, thereby helping to increase the accuracy and consistency of the BB. Accompanied by 3 different types of aluminum Nubs.
The Gearbox input adapter can be changed, with the input adapter OD12mm, OD11.5mm, OD11mm outside diameter to ensure the hopup unit is accurately mounted to the center of the nozzle outlet of the AEG Gearbox/HPA Engine.
FPS can be increased from 10FPS to 30FPS compared to the stock setting.
CNC Aluminum Hopup Chamber is precision machined to operate accurately and consistently on the Tokyo Marui product line (including G&G, KRYTAC) Standard M4/M16 AEG, ICS CXP/CS4/EBB (include old models) M4/M16 AEG series, HPA PolarStar Engines on standard M4/M16 platform.
