Yes, one can be attached but...
Federal law on SBRs
The key issue for the VSKA Draco pistol is not the legality of bump stocks in general, but the federal law prohibiting the conversion of a handgun into a short-barreled rifle (SBR) without proper registration.
A "pistol" like the Draco is not designed to be fired from the shoulder and is registered as a handgun with the ATF.
Attaching any type of stock, including a bump stock, converts the pistol into a rifle, and because the barrel is under 16 inches, it would be an SBR.
Manufacturing an SBR without registering it with the ATF is a federal felony. This requires a rigorous approval process that includes a background check, registration, and payment of a tax stamp.
Summary: Why you can't attach a bump stock
A pistol is not a rifle: The VSKA Draco is classified as a pistol because it has a short barrel and no stock.
A stock makes it a rifle: Attaching a bump stock adds a stock, converting the pistol into a rifle.
The barrel is too short: With its 6.25-inch barrel, the converted firearm would become a short-barreled rifle (SBR).
Manufacturing an illegal SBR: Creating an unregistered SBR is a felony under federal law, regardless of the legality of the bump stock itself.

Hi Richard and welcome. Yes, but to do it legally, one would need NFA registration and $200 Tax Stamp since a "Bump Stock" would change the classification from a Pistol/Handgun to an SBR (Short Barreled Rifle). Cheers, stay safe and enjoy!

Good evening to you!! I'm doing so you take a pistol and convert it into a SBR. If you do so without proper documents you will be breaking federal law. Hope this helps. Have a good rest of your day.
🇺🇸🇺🇸 'Merica' 🇺🇸🇺🇸