All Sig mosquito pistols are that way as the triggers are plastic and use alot ot plastic components.

I saw on a sig forum not too long ago about how they were doing there triggers. I cant remember the site but just use google and youtube. Its pretty much polish everything/remove brass gromet on hammer strutt (but may lead to light primer strikes)

Luckly parts can be gotten easily enough so if you over do anything or want to return it to factory it can be gone.

I will say though that if your not mechanically minded dont try it as they can be a balls to put back together (I was handed 1, in pieces before).


If you need any help shout me a PM.

GH