Sarco bought up the last few Skorpion receivers. These were slated to be made into closed-bolt firing semi-auto versions of the Czech machine pistol, but production was halted before they were made. You can have the receiver only for $199, a receiver plus parts kit (no barrel) for $299 or the parts kit only for $165.
For more information contact: Sarco, Inc., Dept. SGN, 323 Union St., Stirling, NJ 07980 or www.sarcoinc.com