I came up with a quick design to put a laser on a nerf gun for my son. I used the cheapest laser on amazon, attatched is a photo of the one used. for mounting hardware i used 10x32 1" bolts with nylon locking nuts. hole size is alittle large but those were the bolts i had on hand. for printing i used pla with 4 wall count and 15 % infill, turnd on its flat side no supports needed. fairly accurate around 20-25ft. to keep the laser turned on i just used some tape, could desin a slip on collar that keeps the button pushed down.
The author marked this model as their own original creation.