What he said: you can do checkering on a laser (DAMHIKT), but it's a kludge...and it shows in the results.
If I was looking to get into the pistol grip business, I'd be down at the Rockler dealer tomorrow ordering up the Shark CNC. It's designed for woodworking from the get-go, and you can put any kind of high-speed router into it that you want. A bit more than $1500, but way less than you'd actually spend getting set up with a decent dependable laser.