All kidding aside, that is a really nice firearm. Please give us your feedback about it's function, reliability, controllability and any insight those of us unfortunate enough to not get an opportunity to shoot one might find interesting.
SCSW says it produced 6,100 from 1968-1974 in serial # range U100-U6200. Firing rate 720 rounds per minute from an open bolt. Construction consists of 12 major components for ease in field stripping. Prototypes have a T serial number prefix. In 1998 "many" were acquired by the Springfield Armory National Historic Site from S&W for their collection. Pictures I've seen make it look diminutive and light.