· THE ORIGINAL PUBLISHER OF THE MANUAL WAS M&M ENGINEERING.
· THE BOOK WAS WRITTEN BY MICHAEL A. PUGLIESE OF M&M ENGINEERING, A FAMOUS AUTHOR WHO HAS BEEN WRITING MANUALS ON PROPER GUN CARE AND MAINTENANCE FOR OVER 20 YEARS.
· THIS MANUAL WAS WRITTEN SO THAT ANYONE CAN UNDERSTAND THE INSTRUCTIONS, NOT JUST AN ENGINEER OR GUNSMITH.