Diana Diana AirBug Muzzle Protector Removal

Does anyone know for certain how to remove the AirBug's muzzle device? Is the Airbug's barrel threaded like the Chaser? If threaded, is it RED loctited on there like the Chaser's moderator? If it is possible, I would like to use a Diana moderator (same unit the Chaser "factory" rifle barrel has) on the Airbug pistol.
 
i am going to have to seen everyone to Snowpeak School LOL
the Bandit and Chaser have plastic front sight that are indexed and are friction fit
the Airbug has a metal front sight with a removable blade but as mentioned a grub screw on the bottom side and i don't know if it threaded but i doubt it
Airbug and Chaser barrels are the same the Bandit barrel is also the same but 1.2 inches longer for the HPA tank
so you can use a silencer on the Airbug barrel with its 10mm-1 thread or get an adapter to use 1/2-20 threaded units
i use these very inexpensive adapters
https://www.ebay.com/itm/285088594905