This is a recessed suppressor that I made. This suppressor covers 55mm of the outer barrel, and 110mm officially stick out off of the end of the barrel. The 14mm threads start on the inside of the suppressor.
I am not the best at 3d modeling, but I am trying to make it look like the PTS Licensed Griffin Armament M4SDII Gen 2 Mock Suppressor, but obviously make it recessed into the Handguard.
Again, I am not the best at making 3d objects, so I'm not even sure the threads would fit. you'll have to let me know.
The outer Diameter is 35mm, and the entire length is 184mm, the length inside is 55mm, and the length that sticks out is 110mm.
I hope it works out and wish you the best!