Very nice.
I wonder in I can fit all the dna20 internals into the top portion of the sig #20. Find a button similar in size, use the two vent holes in the top as up and down buttons and cut a screen area directly opposite the fire button. Skip the charger and just use replaceable batteries that fit inside the telescope chamber. I wonder if there would be a problem with still having the tube complete the negative circuit instead of having a wire running from the negative end of the battery.
That would be a cool mod. Yes grounding through the body wouldn't be a problem, the ground portion of the dna is shared with all the grounds on the board. Using the on board buttons will dramatically decrease the PITA factor when it comes to finding a place for everything and the wires to fit, but they also create limitations. So kinda of a pick your poison thing.
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