The Modify Baton Ryusoku Flat Hop Up Nub is a great addition to most standard hop up units for those who want to flat hop, R-hop, or S-hop their rifles. This nub requires no modification to the hop up arm, and is a drop in nub for most hop up units, making it easy to give your airsoft gun a hop modification

Features:

Works with standard AEG hopups and barrels
Flat hop provides more consistent contact and backspin on BBs
Improve accuracy, range, and groupings
Package Includes: Hopup Bucking, Hopup Nub