Modify Ryusoku Flat Hop Nub

Modify Ryusoku Flat Hop Nub The Ryusoku flat hop nub is designed for AEG hop units. These work best with hop rubbers like the Mr Hop rubber and other flat hop rubbers. Features: A unique mixture of ingredients Finer-range adjustability of BB's trajectory More consistent on the Hop-Up pressure Compatible with all Marui spec AEGs Recommend using it with our Flat Hop-Up bucking