Gary, Yes Kel-Tec has a threaded barrel for the PMR-30. It is part number PRODUCT CODE: PMR30-505 for $118. But Kel-Tec does not recommend using a suppressor on PMR-30 that act will void warranty. See following directly from Kel-Tec's website.------USE OF A SUPPRESSOR WITH THE
PMR30 PISTOL NOT RECOMMENDED:---------Due to the unique locking action of the PMR30 pistol and the lightweight slide and barrel, the use of a suppressor is not recommended as it will cause an increase in gas volume and pressure and the slide will likely unlock early. This will cause an increase in gases and residue that is ejected back towards the shooters face and could also cause a case rupture to occur. Any damage or injuries caused by the use of a suppressor or other heavy weight muzzle device attached to the PMR30 pistol will not be covered by any Warranty.

Hello Sweets!! Yes it can. Happy shootin!

Gary, yes as long as you get a threaded barrel model or separate barrel : youtube.com/watch?v=6Qr5jCGHqfA

yes it can but you will need a threaded barrel keltecweapons.com/product/pmr-threaded-barrel-with-flash-reducer/