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Home| ZCI Complete 8mm V2 M4/AR QD Gearbox (rear wired)

Manufactured by: ZCI

ZCI Complete 8mm V2 M4/AR QD Gearbox (rear wired) (M-21)

Manufactured by: ZCI

ZCI Complete 8mm V2 M4/AR QD Gearbox (rear wired) (M-21)

Weight: 1.3 lb

Model: M-21

$85.00
$85.00
4
In Stock
product details

This is a complete 8mm Quick spring change Gearbox for M4's. It comes with a rear wired harness designed for replicas that are wired to the stock. These Gearboxes are zinc cast like most other Gearboxes but are made to a higher quality standard. These Gearboxes feature a Quick-disconnect spring guide which allows the user to change springs in seconds and allows for much easier maintenance.

Comes with the following parts:

- 21.4mm Aluminum O-ring Air Nozzle
- 18:1 Steel CNC Gears w/ Brass Delayer
- QD Spring Guide
- M120 Spring
- Full Metal Rack Piston
- Aluminum Piston Head w/ Bearings
- Full Stainless Steel Cylinder
- V2/V3 Aluminum Cylinder Head
- Ball Bearings on Bevel Gear
- Solid Stainless Steel Bushings on Step and Sector Gears
- Selector Plate
- Anti-Reversal Latch
- Zinc Cut-off lever
- M4 Microswitch compatible Trigger
- Microswitch
- Polycarbonate Tappet Plate
- Shims
- Gear Grease (on the gears)
- Tamiya Rear-Wired Harness
- Steel Phillips Head Screws w/ washers

product details

This is a complete 8mm Quick spring change Gearbox for M4's. It comes with a rear wired harness designed for replicas that are wired to the stock. These Gearboxes are zinc cast like most other Gearboxes but are made to a higher quality standard. These Gearboxes feature a Quick-disconnect spring guide which allows the user to change springs in seconds and allows for much easier maintenance.

Comes with the following parts:

- 21.4mm Aluminum O-ring Air Nozzle
- 18:1 Steel CNC Gears w/ Brass Delayer
- QD Spring Guide
- M120 Spring
- Full Metal Rack Piston
- Aluminum Piston Head w/ Bearings
- Full Stainless Steel Cylinder
- V2/V3 Aluminum Cylinder Head
- Ball Bearings on Bevel Gear
- Solid Stainless Steel Bushings on Step and Sector Gears
- Selector Plate
- Anti-Reversal Latch
- Zinc Cut-off lever
- M4 Microswitch compatible Trigger
- Microswitch
- Polycarbonate Tappet Plate
- Shims
- Gear Grease (on the gears)
- Tamiya Rear-Wired Harness
- Steel Phillips Head Screws w/ washers

Customer Reviews

Based on 2 reviews
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50%
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X
X.S.

So far so good, absolutely no problems. It miiiiight be a little tight with slight whining. Very slight. This product is amazing and has held up the past few months. Will purchase again if I need an easy installation and upgrade!

s
s.g.

coupled this gearbox with a ZCI motor both brand new, the gears didn't survive a single magazine, I opened the box because it made some noise and was locked up, what I found was the spur gear that drives the sector gear, all of the teeth had come off. The good, I like the trigger switch even if it makes this gearbox somewhat propritary, coupled with an adjustable trigger and a mosfet would make this a very nice setup. The gear quality does not justify the price for this gearbox, maybe I got a bad set of gears, I am going to radius the corners which at this price should have been raised, before assembly

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