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Echo 1 ER25 Gearbox Shell Only

[22538 / ECHO ER25 MB SHELL]
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New to airsoft? Here are some safety tips for airsoft guns that we recommend following.

You may need to replace your gearbox if your original one becomes damaged from issues like high performance parts. The Echo 1 ER25 Gearbox Shell Only is an OEM replacement part for the Echo 1 ER25 airsoft gun. It may fit with other airsoft guns but this cannot be guaranteed by Airsoft GI.

Manufacturer: Echo 1
Color: Black
Material: Metal
Package Includes: One (1) Gearbox Shell, Six (6) 7mm Bearings
Warranty Length: 30-days
Warranty Handler: Echo 1 (Warranty Policy)


  • Metal Construction
  • OEM Replacement

Please Note:

  • Professional installation is recommended. Improper use or installation of upgrade parts are 99% of the time the cause of failures of these items.
  • Please thoroughly inspect any parts for defects before attempting installation. Due to the high possibility of damage from improper installation, we will not warranty parts after attempting installation.
  • This is only the shell of the gearbox, gears are not included.
  • Package contents included by the manufacturer may vary.

Manufacturer: ECHO 1
Color: Black
Material: Metal
Package Includes: One (1) Gearbox Shell, Six (6) 7mm Bearings
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And for an A&K SR25 ?
Hi Airsoft GI ! Is this gearbox shell same in length and thickness as the stock A&K gearbox (which is an extended V2 gearbox ?) Thanks for the answer !

2120 days ago
Julien G

(I have this same question)
Staff Answer:
Yes it is the same size.

2107 days ago
1 answers
1 asked
Search Tags: Metal Gearbox Shell OEM Replacement

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