Manufactured by: Lonex

Lonex Complete M4 Drop-In SP120 Gearbox (18:1, Ported Cylinder)

Manufactured by: Lonex

Lonex Complete M4 Drop-In SP120 Gearbox (18:1, Ported Cylinder)

Weight: 1.31 lb

Model: GBA-02

Regular price $140.00
$140.00 Sale price Regular price
Sale
4
In Stock
product details

This Lonex Gearbox comes complete with all Lonex parts and is designed for a rear-wired setup. Since everything in this Gearbox is Lonex, all of the parts fit optimally and are designed to work together.

Upon inspecting these Gearboxes, I was surprised to find that the AoE was nearly perfect and so was the compression. Instead of using a Sorbothane buffer, the Piston uses a spacer to correct AoE.

Comes with the following parts:

- Lonex V2 8mm Gearbox Shell w/ 8mm bearings
- Lonex Red Half-Tooth Piston w/ Spacer for AoE
- Lonex Aluminum Piston Head
- Lonex 18.65:1 High Speed Ratio Steel Gears
- Lonex Enhanced V2 Spring Guide
- Lonex SP120 spring
- Lonex Shims
- Lonex Lonex POM M4A1 / M16A2 / RIS / SR16 Air Nozzle
- Lonex Lonex V2 Enhanced Tappet Plate
- Lonex V2 Cylinder Head
- Lonex Ported M4A1 Cylinder
- Lonex Gearbox Springs
- Lonex Anti-Heat Selector Plate
- Lonex V2 Trigger Contacts
- Lonex ARL
- Lonex Trigger
- Lonex Chrome Steel Cut-Off lever

This Gearbox is great out of the box and can be even further upgraded with a MOSFET and deans connectors.

This Gearbox has a ported Cylinder, so this Gearbox is volume matched for ~363mm barrels.

product details

This Lonex Gearbox comes complete with all Lonex parts and is designed for a rear-wired setup. Since everything in this Gearbox is Lonex, all of the parts fit optimally and are designed to work together.

Upon inspecting these Gearboxes, I was surprised to find that the AoE was nearly perfect and so was the compression. Instead of using a Sorbothane buffer, the Piston uses a spacer to correct AoE.

Comes with the following parts:

- Lonex V2 8mm Gearbox Shell w/ 8mm bearings
- Lonex Red Half-Tooth Piston w/ Spacer for AoE
- Lonex Aluminum Piston Head
- Lonex 18.65:1 High Speed Ratio Steel Gears
- Lonex Enhanced V2 Spring Guide
- Lonex SP120 spring
- Lonex Shims
- Lonex Lonex POM M4A1 / M16A2 / RIS / SR16 Air Nozzle
- Lonex Lonex V2 Enhanced Tappet Plate
- Lonex V2 Cylinder Head
- Lonex Ported M4A1 Cylinder
- Lonex Gearbox Springs
- Lonex Anti-Heat Selector Plate
- Lonex V2 Trigger Contacts
- Lonex ARL
- Lonex Trigger
- Lonex Chrome Steel Cut-Off lever

This Gearbox is great out of the box and can be even further upgraded with a MOSFET and deans connectors.

This Gearbox has a ported Cylinder, so this Gearbox is volume matched for ~363mm barrels.

Customer Reviews

Based on 2 reviews
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J
J.R.

TERRIBLE CABLES, GREAT PRODUCT! Follow me @ Actual Airsoft Reviews Not drop in ready, took me several days to solder new wires with Tamiya connections because the rear wired slot is only 1 inch. Barely sticks out of the QD mount plate. I had to drill out my QD mount to fit the lonex Tamiya connection out. Then drilled out two holes in my buffer tube to run the new cables to the end of the buffer tube. Total I made two new Tamiya connection ports, about 8 inches of wire into my gun. This gear box is sold and I have paired it with a SHS Rocket high torg motor also I bought from Brill Armory. My FPS is around 312 with .20s, max range is just over 200 feet on a 155mm barrel!!!! Very impressive build I have, ZCI Outer barrel and ZCI rails 4.5/5.5 inches, I have bought from here also, solid little gun. I highly recommend this gearbox just remember if will take work some wiring work to get it started.

R
R.K.

The gears self destructed after about 60 rounds. The spur gear turned into wheel. Okay it was a lemon. Installed new gears and replaced bearings with steel cnc bushings. soon after the shell broke.