Originally Posted by Greylocks
DEET and airsoft gun's ABS plastic and rubber dont mix. Same for goggle's plastic. DEET melts it all or severely destroys the finish.
Keep that in mind with your choices.
I ruined my BB air rifle scope with that. The finish is ruined and a leaf somehow got stuck and melted inside the plastic. It's over 5 years now and the leaf is still visible under the melted plastic... Very strange!
I don't know if spraying silicone oil on your gun will repel DEET.