Ares M4 - 9MM 45rnd Magazine Conversion Kit

Product code: MAG-038-BK
  • Very Robust Polymer
  • Fits Many Branded M4s
  • Replacement M4 Mag Catch

Say goodbye to STANAG! A magazine-well adaptor that allows you to turn your Airsoft M4 AEG into something a little bit different, an Airsoft replica of the 9mm M4/M16s. 

Full description


This is an Airsoft magazine-well conversion kit, based on the real steel setup where people were wanting a more "cost friendly" range day experience. Popular amongst real-steel firearms enthusiasts to this day for their affordabilitty, 9mm M4 were also popular with many police forces in urban environments prior to the arrival of compact M4/M16/AR-15 carbines in the mid 2000s. This 9mm kit is purely based on replicating the 9mm style magazine used in a normal M4/15/16 STANAG lower receiver. You can't go firing 9mm BBs now, the included magazine holds up to 45 6mm BBs. Once installed this bit of kit looks incredible. Lightweight yet incredibly durable and very easy to fit to a wide range of tried and tested branded AEG's including G&G, KRYTAC and many more. You also get included a replacement magazine catch, this is a low profile catch that once fitted to your beloved Airsoft gun you cannot accidentally release this magazine adaptor due to the low profile design of the release catch.


  • Tried and tested and works in the following branded receivers:
    • G&G
    • ARES
    • WE Europe/NUPROL
    • CYMA
    • ASG
    • Cybergun
    • King Arms
    • KRYTAC
  • Incredibly durable
  • Easy to strip and maintain to remove debris and small vegetation after a skirmish
  • Incredibly satisfying to fit

Package Includes:

  • M4 - 9MM 45rnd Magazine Conversion Kit
  • Replacement Magazine Release Catch For M4/M15/M16 Receiver
  • 1 x 9mm 45rnd Magazine

Special Instructions:

You do not need to use the replacement magazine release catch for your M4/15/16 lower receiver. The replacement catch is intended to be a low profile design, so you cannot accidentally knock it and drop your newly installed 9mm magazine and the STANAG to 9mm adaptor.



Colour Wheel Greyscale
Item Colour
Construction Icon

Magazine Specific

Magazine Style Icon
Magazine Style
AR 9mm
Weapon Platform
M4 / AR15 / M16
Magazine Type
Magazine BB Capacity
Approx. 45 Rounds
Magazine BB Fill Location
Magazine BB Fill Method
Speed Loader