KWA MP9 Fixes and Modifications

[DrunkenBagpiper]

I’ve been a long time reader of the forums here, but have never posted, mostly because I didn’t think I had anything very useful to post. However, my somewhat troublesome but totally fun KWA MP9 has caused me to search for some simple, but useful fixes and modifications that I figured might come in handy to other KWA MP9 owners.

The PDF linked below contains a work-in-progress report of the various modifications that I have applied to my KWA KMP9. So far, the file addresses the following problems:

1. The bolt catch scratching the side of the bolt.

2. The cylinder return springs falling off the cylinder, resulting in “chewed up” return springs.

3. The bolt failing to move completely forward into battery, often preventing firing of the shot.

4. Gas jetting out of the back of the gun directly into your eye upon each shot.


Enjoy! Please save to your computer to reduce bandwidth usage!

https://drive.google.com/file/d/1C_vsQA ... sp=sharing

Please feel free to leave constructive feedback. If there is a fix/modification that you would like to see in this guide, please let it be known here! I will continue to update this file as time goes on and I will edit this post to notify of any changes or additions to the document.


12/2/2020- Updated link to file.

[Beran]

[DrunkenBagpiper]

[Beran]

[DrunkenBagpiper]

[josemadero]

Im buying a kea mp7 in 2017. Do you think i still need to make this modifications or maybe kea fixed already the issue?

[Grounded]

Not sure you'll get much replies bro.

[Rentax]

My guess is they didn't fix anything. Yes it's been 6 years, but in general if the gun fires out of the box, the company isn't going to spend time making modifications to their own designs. They had prototypes that they put through the ringers long before that gun hit the open market, and they knew exactly what they were selling.
My guess is in time you will need to do most of those mods. HOWEVER, you should but the gun shoot it, play with it and watch for signs of wear, if you never see any, then KWA fixed their product. if you start seeing wear then preemptively do the repair and save yourself the headache latter.