I like this way to much by chance could you tell me the measurement in mm for the gap between the spas cage in the Thompson upper, I am going to redesign the way my pulse rifle is connected so that would help get me started in the right direction.
Not sure what you mean , it will be bolted flush with the machined Thompson block from the spas cage as seen in the photo , which isn't put together yet
Everything really goes by your barrel vent and barrel as the Thompson is the start of the build for me anyway , keeping the barrel vent straight on other builds can be a depending factor , if that helps answer how to get everything , if not please contact me and I will try to help you anyway I can , just PM me anytime !!!