Your right I'm planning to install in a GBB. There is still room on top of the slide and 9v battery can be replaced by cell type batteries. Really appreciate the effort in this build and I do understand that reducing the PCB would mean remaking a new PCB layout and would require the same effort as the prototype. Guess I have to wait longer and hope he builds new versions in the future and its a challenge for him which is difficult to resists...
The thing is that a smaller board behind the display will do little good as it will be much too thick and stick out from the side of the gun. (Actually, the display itself is too thick to fit between the glock and the screen bezel- you'd have to make it a lot wider, thus making it a lot less accurate. If you don't care about the accuracy, you could possibly fit the board in there as it is- height-wise it should just barely fit I think. it might also be possible to position the board in the frond of the shell- or perhaps the ribbon cable could be extended with some tinkering.
