Prometheus Hopup Tensioner Bridge Flat Rubber Nub Prometheus which is the most common

which is the most common

VECO434QRBM2

A standard replacement motor for short type guns

two adjustable compression straps on each side of the back pack

Prometheus Hopup Tensioner Bridge Flat Rubber Nub Prometheus which is the most commonPrometheus Hopup Tensioner Bridge Flat Rubber Nub. A unique set, with the little bridge (underneath) that works in all airsoft AEGs (not the Uzi). Includes both a hard and soft unit, so you can decide which one works best. Or use in two guns. A new high quality product from Prometheus in Japan! Highly recommended. Sold separately here the tiny steel pin that fits in the center hole perfectly (optional; not needed). AKA the Namazu hopup nub metal pin