Degrease your K31 trigger assembly...

[Guisan]

Fog yes, corroding no more as further inland. My non-blued antique guns are hanging on the wall only treated with CRC 3-36 and it's only dust they suffer from, not corrosion.

[Dannicus]

Fog yes, corroding no more as further inland. My non-blued antique guns are hanging on the wall only treated with CRC 3-36 and it's only dust they suffer from, not corrosion.

Figures. Crc3-36 has corrosion inhibitor properties.

[Vee3]

I'm just quoting the military manuals and all these say NO combat lubing at all.

I'm sure they know what they're talking about.

Good triggers (which I'm confident the Swiss know how to make) have the working surfaces - mainly the sear/trigger interface - heat treated to exactly the same hardness and polished to prevent galling. Often times, manufacturers will use the same bar of steel to make both parts and heat treat them in the same furnace loading to ensure they are the same hardness.

Arnold Jewell, of Jewell trigger fame, wrote that the majority of problems in his triggers are from owners lubing or letting bore cleaner run into them. His cleaning recommendation is to hose them out with lighter fluid and let them dry.