Prometheus FLAT Hop Up Tensioner Nub Set (soft & hard) Factory Replacement Parts (OEM) Holds 4 M4 magazines

Holds 4 M4 magazines

Echo 1 M28

2 package will includes everything you will need to get started :

All metal and awesome

Prometheus FLAT Hop Up Tensioner Nub Set (soft & hard) Factory Replacement Parts (OEM) Holds 4 M4 magazinesPrometheus Hop Up Tensioner FLAT rubber nub set (soft & hard). Includes two rubber nubs. The Flat style hopup is quite popular! For use with any type of bucking, depending on your hop up setup. The Flat set is made in Japan and is super high quality. Contains 1x Soft and 1x Hard nub so you can mix it up, or use in two different guns. Sold separately here the tiny steel pin that fits in the center hole perfectly (optional; not needed). AKA the Namazu