CYMA Hop-Up Chamber for CM.041PDW/CM.041K AEG

Code: FBP4150
  • Polymer construction
  • For CM.041K and CM.041PDW
  • Replacement original CYMA part

If you have damaged your HOP-up unit and are looking for a replacement, CYMA are now offering their original HOP-up units as an aftermarket part. This unit is for the CM.041K and CM.041PDW AEGs, but will not fit the full sized CM.041 AEGs. The unit is constructed from polymer and comes complete other than the HOP-up rubber. The HOP unit, slider, c-clip and HOP nub are all included, so if you have lost or damaged one of these bits you are in luck!

Full description



  • Polymer construction
  • Includes HOP-up unit, slider, c-clip and HOP nub
  • For CM.041K and CM.041PDW AEGs
  • Will not fit CM.041 full sized SMG-5s
  • Factory replacement original CYMA part - No compatibility issues to worry about!

Package Includes

  • CYMA Hop-Up Chamber for CM.041PDW/CM.041K AEG



Internal Part Type
Hop-Up Unit, Hop-Up & Parts,
Patrol Base - Warning Icon
Patrol Base - Warning Icon
Parts Fitting

Weight and Dimension

Weight KG Icon
Weight (KG)
Approx. 0.02kg


Colour Wheel Greyscale
Item Colour
Construction Icon
Polymer with rubber HOP nub.
Internal Part Construction
Polymer, Rubber,

Part Specific

Part for Power Source Type
Weapon Platform
  • Submachine Gun
  • CM.041K and CM.041PDW
Package Includes
  • Hop Nub
  • Hop Unit

Electric Part Specific

Gearbox Version Compatibility Variant
Version 3

Size guide

Parts Fitting

Upgrades and Downgrades should only be undertaken by experienced players, or Airsoft Technicians. Please note, changing any internal parts of a weapon voids its warranty unless done in-house by our staff. 

Please ensure that when fitting parts the part purchased is the correct part, as once a part has been fitted we cannot accept return.

We do know that players love to tinker, so we're here to give you help should you require it, and if needed you can get in touch with our workshop for more help!

Unique Parts

Please note that some parts may be unique to a specific brand of weapon. For example: Parts for an ASG M4A1 may not fit an ICS M4A1.

Parts from the same brand typically have a high chance of fitting, though be warned, some replicas use unique parts, so please ensure the part will fit before you attempt to fit it.

If you require help with fitting any parts feel free to get in touch with us via our Contact Us Page.