Tokyo Marui MK23 Knocker Valve

Tokyo Marui
Code: MK23Knocker
Was £7.99
Save £1.20
  • Replacement part
  • Brass with rubber O-rings and a steel knocker
  • Fix up your old MK.23 magazines!

A replacement or spare Outlet / Knocker Valve for the Tokyo Marui MK23 SOCOM NBB Pistol. If you own plenty of Magazines and want to keep them in tip-top condition, then you're going to want a few Knocker Valves spare in your arsenal. They are incredibly easy to install, provided you have an appropriate Valve Key on standby. You can use other tools to install them, but this is not recommended as you could damage the Valve.

Full description



  • For the Tokyo Marui MK23 NBB Pistol
  • Knocker / Outlet Valve
  • Vital Spare Component
  • For Gas Magazines
  • Fix Leaking Magazines
  • Brass / Steel Construction
  • Must-Have Spare Part

Package Includes

  • Tokyo Marui MK23 Knocker Valve

Special Instructions

This knocker valve will only fit the Tokyo Marui MK23 and is not compatible with the ASG MK23 or clones. 



Internal Part Type


Colour Wheel Greyscale
Item Colour
Construction Icon
Brass valve, rubber O-rings, steel knocker
Internal Part Construction
Steel, Rubber, Brass,

Part Specific

Part for Power Source Type
Weapon Platform
  • Pistol
  • MK23
Package Includes
Replacement standard Knocker Valve

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.