If you are using the left-handed option, the laser comes out the right hand.

On mining gadgets 1.3.5 - MC 1.15.2 the direction is fixed, but the laser is detached from the gun.
The particles for freezing upgrade, instead, are still broken.

You would appear to have the hasit effect, although, my code should resolve the problem sooo ... hmmm

Hmm, what mod version is this on?

Definitely fixed now, closing :D