They will be threaded with an adapter for 1/2"-28 tpi on the muzzle. This allows you to use any common AR-15 muzzle device. We will also be chatting up the airsoft dealers in Nuremberg and trying to source fixed butt stocks for a decent price.
I have spoken to LW about getting more blanks for barrels. The issue is getting an export permit from the EU to ship them. It is about a 2 month process right now so we will get it started soon.