Check your CAPS lock, it's the internet's version of screaming at another person.

I can't imagine why Kriss would tell you to cut the barrel and do a Form 1, considering they offer conversions for a fee right on their website: http://www.kriss-arms.com/2012-03-21-12-50-42

"KRISS USA offers a conversion service to convert your CRB/SDP to an SBR. You can ship the firearm to us and we will replace the 16” barrel of a CRB with a 5.5” threaded barrel assembly or remove the pistol end attachment of the SDP and replace it with a folding stock. Since the SBR is considered a class 3/NFA weapon, we will need to complete the appropriate paperwork with the ATF prior to transferring it to your class 3 FFL/SOT dealer. There is a charge for this service, please contact us for a quote."

What this means is that you send them the gun, they replace the appropriate parts and then register the gun on a Form 2 (Notice of Firearms Manufactured or Imported) as it's now a Title II or NFA firearm.

Next they Form 3 the gun to your SOT of choice, who will then Form 4 the gun to you.

There is no engraving, no hacksaws, or no gun smithing required on your behalf.