CowCow Light Weight HopUp Chamber For Marui G17 Gen4 Outer Barrel Category_Grenade Launcher -Made with cold-resistant material to

-Made with cold-resistant material to decrease gas leaks

G17 Gen4 GBB

Straight adjustable trigger

I Ring / Inlet Valve O-ring for Gas Pistols Magazine

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CowCow Light Weight HopUp Chamber For Marui G17 Gen4 Outer Barrel Category_Grenade Launcher -Made with cold-resistant material toFor Marui G17 Gen4 GBBFeatures : Aluminum 7075 material with CNC machined Ultra Light Weight design Enhancing accuracy and consistency with high durability and reliability Redesigned structure to provide extra support to lower part of chamber Able for ultimate user to optimise setting and maintain stability Including stainless steel guide plate*PS: Please note: installing parts assemble fitting airsoft gun will need intermediate knowledge; for expert