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Home » Accessories & Parts » AEG Internal Parts » Gearbox » Version 2 Gearboxes

Classic Army 9mm Ball Bearing Gearbox for Ver.2 M4/M16 Series Airsoft AEGs w/ Quick Change Spring Guide

ID: 31217 (GB-CA-A551M)
A551M
Classic Army 9mm Ball Bearing Gearbox for Ver.2 M4/M16 Series Airsoft AEGs w/ Quick Change Spring Guide
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Classic Army

$49.00

MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.

Description

Specifications

Reviews

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Features

  • 9mm steel bearing gearbox design allows for improved performance and reliability
  • Quick change spring system allows for easy spring swaps
  • Reinforced gearbox shell
  • Quick change spring guide included

Manufacturer: Classic Army

Specifications:

Compatibility: Any receiver that accepts a version 2 gearbox
Material: Metal alloy, Aluminum, Polymer


All Classic Army products, imported and distributed by Classic Army USA, hold a 90 day limited manufacturer's warranty within the United States. This 90 day warranty coverage is effective starting from the date of purchase. To gain this warranty coverage, you must register your product on our website product registration page. Proof of purchase from an authorized retailer will be required in order to gain warranty coverage. This warranty only applies Airsoft Rifles and is not applicable to accessories or spare / upgrade parts.

1 Customer Review

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by Adam S. on 03/09/2024
"Purchased this so I could upgrade my Classic Army Skirmisher. In it's stock form, it leaves a lot to be desired. The screws came pre-stripped. The gearbox was warped so not all the edges touched when holding it closed together. The bearings are loose enough to fall out which made shimming gears take longer than it should. It did require quite a bit of modification to upgrade with what I wanted. Had to grind away parts to fit the gears. Had to modify my tappet plate because this gearbox has reinforcement that would not allow it to recede all the way.

Please note that this gearbox uses a proprietary selector plate. ID: 100308 (Part-CA-P265M-1)

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