Manufactured by Specialty Arms of Springfield, Ohio, using a semi-automatic IMI UZI carbine receiver and bolt as the starting point; the receiver still retains the bolt restrictor block and barrel collar, a carbine-configuration barrel has been shortened and the top cover is the non-ratcheting model. Post front and two-leaf rear sights, with the Specialty address added to the right side and some of the original markings scrubbed. The bolt is unmarked, with a fixed firing pin and a semi-auto style slot down the right side, and the trigger housing is "A F S" marked with all positions functional. Fitted with a ribbed forearm and grip panels with underfolding steel buttstock. Original barrel collar absent.

Threaded for compatibility with item "A", mounting to the receiver in lieu of the barrel nut. Overall length is 12 3/4 inches, with alloy and steel construction and a combination of ported tubing and stacked baffles in the interior.