Adapters allow you to mount a laser without gunsmithing.

Easily convert your Taurus Judge to accept tactical lights or lasers without gunsmithing. Installs in minutes but built to last a lifetime.
Laserlyte won the 2009 NRA Most Innovative Shooting Accessory for their sub-compact V2 laser, item number SCP-796. Revolver Rail for Taurus Judge - SCP-792
Revolver Rail for S&W J-Frame - SCP-793