The Echo1 H-nub is a replacement for the stock rubber nub in AEG hop-up units. The H-nub, branded by Big Out, is shaped to fit the curve of an airsoft BB better than standard hop-up nubs. The solid construction of the H-nub also increases consistency and overall effect of the hop-up unit.
(replaces little rubber nub underneath hop-up bucking)
Echo1 H Nub Set Features:
-Gives you better hop-up performance
-Flatter flight trajectory
-Provides better Hop-up consistency
-Provides better accuracy
*Two nubs included