On the S&W site they "NOW" list (2) MA Compliant Versions: 9mm & .40S&W
The first one listed is the 9mm & The second link is the .40S&W
http://www.smith-wesson.com/webapp/w...layErrorView_Y
Product: Smith & Wesson M&P SHIELD
SKU: 180051
Estimated Availability - October 2012
Trigger Pull:10.5 lbs. +/