Stock BK1S Safety switch is too long and easy to bump. This BK1S and BK2S Short Safety Switch Replacement reduces the size while maintaining its clicky features.

Re-use the spring and ball detent of the existing safety.You will need to open up the blaster to access this. On the inside is a mating plate which you will need to re-use as well.

Print in whatever orientation you want to maintain a smooth surface. Recommend ironing.

I recommend you add support blockers for the main screw hole and the ball bearing/spring hole. You dont need support for those parts, and removing it will be a pain.