Did you know it took 337 gages and 94 cutting tools to make an M9 frame?
The gestation period of a Beretta M9 frame is covered in one place and with the help of 18 different receivers to show the work. The M-9 receiver production sequence is explained in 3D with actual frames in various stages of completion in an upcoming auction from Rock Island, ranging from a blank forging to a finished serialized receiver.
Starting with a 7075-T6 aluminum forging that weighs 27.7-ounces, the 65×49-inch board covers the 15 workstations and 42 machines used to cut the forging down to a 6.98-ounce completed receiver that has had 75 percent of the original material removed. Each of the stations is detailed (e.g. “Work Station #10: Mill trigger bar seat, disassembly button, right side & trigger guard area”) with the changes done to the frame highlighted in red.
Not a lot of background as to how the board was used, other than it originated with Beretta USA. The U.S. subsidiary was founded in 1972 and headquartered in Accokeek, Maryland but in recent years has moved a lot of their production to a new facility in Gallatin, Tennessee.