Before Jakks Pacific put a final bullet in the once-proud Laser Challenge Brand, they came out with some blasters that attempted to imiate LTTO/LTX with sensor domes built onto the blaster. We picked up a few just to check them out when they were released but removed the sensor domes to make them standalone blasters to comply with OLCA rules. They've held up alright, with 4 of the 6 blasters still around.
The P.R.O. Blaster was a step up from the first pistol they came out with. It featured a removable front barrel extension with a folding bi-pod and a retractable stock on the back. While the barrel extension was pretty neat (though technically useless), the stock was so tiny, even a 6-year-old would have a hard time making use of it.
The other day when I was going through gear, I noticed that one of our custom-painted LC P.R.O. blasters had a bad trigger/was in need of repair. While I was getting ready to work on it, I thought instead that I could overhaul the weapon and actually make it a decent blaster. One thing led to another and I thought up a few ways to improve this to really make it a nice solid laser tagger.