Low Profile Laser Sight Under Barrel Rail

I had nowhere to fit my spare laser sight on my air rifle with the scope already fitted on top so I made this to fit under the barrel of the rifle.
Designed to fit the common 20mm Picatinney female fitting and barrel width of 15.5mm.
It works quite well and does its job.
The nuts and bolts I used were spares from my Prusa M3S+ build as they turned out to be a perfect size.