I did some research and this is the motor on the PW auto drive.
http://catalog.orientalmotor.com/item/ac-motors-gearmotors-/tors-induction-motors-k-ii-series-induction-motors/5ik90ua-75?&plpver=11&origin=keyword&by=prod&filter=0
Thanks
This one
http://www.budsgunshop.com/catalog/product_info.php/cPath/21_39_71/products_id/84408/Para+Pro+Comp+.40+40+Smith+%26+Wesson+5%22+8%2B1+VZ+G10+Grips+Blac