Nope. If you are in business with an FFL 01 and an Class 3 SOT stamp, full autos that you have in your business stock for sale to the military or LE are not yours, they belong to the business. If you lose your license or go out of business, you can't keep them as personal property or transfer them to yourself because as an individual you can't own them.
True, if you are speaking of post-'86 "samples." If the are pre-'86 transferables, you can keep them. But then you really didn't need the FFL for a transferable MG.
If you have an 07FFL (manufacturer) and Class 2 SOT (Class 2 is for manufacturers), you can manufacture a full auto, but then it has to be given up or destroyed if you give up your FFL.