Thread: Kwa mp7 o ring
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Old September 15th, 2018, 12:05   #2
Danke
 
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Join Date: Oct 2007
Location: Danger Zone
That's usually a mistake with the KWA MP7. Running oil in the mags is normally enough to keep it running.

The hop up rubber is prone to swelling up from oil. Anything you put on the nozzle and O-ring will transfer directly.

You can field strip and put silicone grease on the bolt's working parts to keep it lubed but just pouring oil in isn't ideal.
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