Gearbox: Version 2 Gearbox w/ Quick change spring system

Integrated Weaver & Picatinny type mount

The slogan was coined in 2018

Designed to perfectly fit the GTP 9 and SMC 9 platforms

Do not miss this gun

Gunskins M4 Vinyl (Reaper Z) hop up bucking Gearbox: Version 2 Gearbox w/GunSkins are 100% waterproof, non reflective, and made in the USA. Tired of everything being matte black? Don't settle for a low quality decal for your AR 15 when you can wrap it with the best! emovable and leaves no residue behind Waterproof non reflective matte finish Easy to install high performance vinyl Conforms to any shape Lifetime warranty Made in USA