Specifications

This kit is the Ultimate High Performance Gearbox Upgrade Kit for JM Gen. 9.
.Refit requires some hands-on ability

Why upgrade when you can build your very own high performance gearbox from the ground up. We’ve selected the highest quality components available today and compiled them in a complete, ready-to-go gearbox build kit.

If you want the absolute best performance out if your blaster,  this is the kit for you.

Features:

• Assorted High end products of good quality and high durability required to upgrade GEN 9 internal gearbox.
• If assembled correctly you can expect to achieve a FPS range from 375 – 412 FPS with a high rate of fire on full auto
• Includes 2 springs of different gauge depending on what you want to get out of your Blaster

The Pack Contains:

• 2 x Green O rings
• 2 x Clear Silicone O rings
• 1 x GEN 9 metal competition trigger
• 1 x Brass cylinder head with double O ring seal
• 1 x Brass nozzle with black rubber tip
• 1 x Polished bore cylinder – silver look
• 1 x Blue SHS 14 Tooth piston with metal rack – high quality
• 1 x Complete silver wiring loom with GEN 9 trigger block and contact plate with spring
• 1 x Metal buffer tube screw
• 1 x Metal Spring Retainer
• 1 x SHS M90 spring
• 1 x SHS M120 spring
• 1 x SHS 18:1 carbon steel gear set
• 1 x SHS 8mm bushing set
• 1 x Fighting Bro shimm kit
• 1 x Metal anti reversal latch with spring
• 1 x Nylon Tappet Plate
• 1 x Nylon gearbox housing with matching Allan key/hex head screw set
• 1 x Purple Chi Hai high torque/ high speed motor – RATED 8.4 V – 39000 RPM
• 1 x Ported, dome shaped piston head
• 1 x Clear plastic T piece
• 1 x Standard GEN 9 length alloy barrel 33.5cm
• 1 x Nylon fire mode selector plate

Please note: The reliability, and performance increase is dependent on the quality of the installation.

Professional installation is required.