ASG Ultimate Cylinder (M4A1/SR16 Series)

Code: 16598
  • Metal Cylinder
  • Perfect For M4 Variants 
  • Also For The SR16 Series

A replacement or upgrade cylinder for M4/SR16 variant AEGs.

Full description


Perfect replacement or upgrade part to your M4 or SR16. The ultimate upgrade series delivers great performance for airsofters on a budget!


  • Metal Cylinder
  • Perfect for M4 varients and the SR16 series
  • Ideal spare or replacement part

Package Includes:

  • Ultimate Cylinder (M4A1/SR16 Series)



Internal Part Type


Colour Wheel Greyscale
Item Colour

Part Specific

Part for Power Source Type

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.