I tried to add a suppressor to a short barrel 9mm build created in the Gunstruction application and was informed that a compatible quick disconnect muzzle device had not been installed.  None of the muzzle devices allowed the suppressor to be attached either.  Will a direct thread attachment option be available in the near future?

I also noticed that not many options were available for shorter barrel lengths in 9mm.  ADCO Firearms is an industry partner and they make and sell 4.5" and 5" barrels.  Are there any plans to add these barrels to the Gunstruction application?