Retroarms Split Gearbox for V2 (8mm)

CNC split gearbox V2 designed for Gel Blaster replicas AR15 (M4), M16 and other ones with V2 gearbox. This gearbox is manufactured from one solid block of aircraft aluminum (Dural) EN AW 7075 T651, which has higher strength (590MPa), than common construction steel (390MPa). Because of used material, our gearboxes have the best durability and resilience than common zinc-aluminum gearboxes. We are manufacturing these gearboxes on our precise CNC milling machines in our factory. Detail in bracket (8mm) means diameter for bushings/bearings.

Split gearbox means, that this gearbox is designed as a two part, Upper and Lower. Having a split gearbox has many advantages. For example much more easy installation of the inner parts into the gearbox. During setups of you cylinder set, there is no need of removing whole gearbox from your receiver, only upper part can be dismounted, because it‘s mounted on one receiver pin. This gearbox can be installed even into the receivers AR15 (M4), what are not completely straight, with any AR15 (M4) Hop Up chamber of your choice.

Recommended nozzle length is 21,4mm. Be aware that nozzle length can be influenced by many factors, for example angle of the tappet plate or different length of t-piece. In these scenarios, you will need a different nozzle length.