Created with Unity3D / C# / OpenCV.
Should have trating laser pistol like this one: https://www.amazon.com/LaserLyte-Trainer-familiar-RESETTING-training/dp/B00PB7HLGS
or laser cartridge bore sighter: https://www.amazon.com/Laser-Cartridge-Sighter-Boresighter-Boresight/dp/B074DS351D
Contact me at LinkedIn.