They conform to the EU EN13432 standard of degradability and the ISO standard 3290-2001 G3 which is the highest industry standard for precision rolling bearings

Gold spiral outer barrel

Inner Barrel: ~128mm

Oval Point Set Screw x 1

SS Airsoft IGL Standard Weave F2 (Green) Airsoft Spring Shotgun They conform to the EUThe Integrated Grip Line or IGL is Airsofts original solution for replacing the weak and flimsy macro line that typically powers HPA conversion for airsoft replicas. The IGL is available with fittings compatible with most HPA units on the market from manufactures like Polarstar, Redline, Wolverine and Protech. The IGL is constructed from a durable, widebore line and is available in many different colors. Every piece is hand made and tested right here