I'm going to add a little bit to your post if you don't mind Vayp.
If you gas up the gun and the trigger still has no resistance turn the velocity up. Pretty soon you should hear the sear click out. The trigger now has resistance but probably will need more pressure to actually shoot.
"There once was a buggy AI
Who decided her subject should die.
When the plot was uncovered,
The subjected discovered
That sadly the cake was a lie."