Keen Sharp Cylinder Head - M4

Keen Sharp
Code: KS-CH-M4
  • Polished Smooth
  • Tapered Inside Face
  • Double O-ring Air Seal

Improve the air seal and airflow of your M4 Airsoft AEG at the same time from upgrading your cylinder head. 

Full description


Thanks to the double o-ring design this cylinder head sits incredibly snug inside your cylinder. With the tapered inside face each shot will have a more consistent volume of air pressure behind it. Providing the rest of your gun is set up correct and using decent quality BBs you should see an improvement in your shot accuracy over time


  • CNC machined improving air seal
  • Smoothed edges for a snug fit
  • Double o-ring for a tighter air seal against your cylinder
  • Smooth polished inside finish
  • Sorbothane padded to create a damping effect from your piston head slapping against it during firing
  • Tapered to improve air flow and shot accuracy
  • Anodised Orange finish

Package Includes:

  • M4 Cylinder Head



Internal Part Type
Cylinder Head
Patrol Base - Warning Icon
Patrol Base - Warning Icon
Parts Fitting

Weight and Dimension

Weight KG Icon
Weight (KG)
Approx. 0.011kg


Colour Wheel Greyscale
Item Colour
Construction Icon
CNC Alloy
Internal Part Construction

Part Specific

Part for Power Source Type
Weapon Platform
AR Platform

Electric Part Specific

Gearbox Icon
Gearbox Version
V2 Gearbox

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.