The M11/9
Wheats Weapons Project, Group 42
Introduction
The M12/386 is the same gun as the MAC II, although a few changes exist
to stisfy the BATF that the gun wil remain semi auto. The M11/9 gets it's
name from the conversion of the former model II, a .380 open bolt selective
fire gun to 9mm semi-automatic. It should be noted that the M11/9 and the
M12/380 function is identical except that the M11/9 is 9mm and the M12/.380
chambers .380 rounds.
Building The M11/9 (and M12/380)
This document will cover the construction of the lower receiver only
since M11/9 and M12/380 parts kits are avalable from MAC, RPB and/or
Cobray (see sources or look in Shotgun News.) The lower Receiver
is the only part of this gun that the BATF considers a gun so
all the other parts may be sold without forms or waiting periods. It
should be noted that unformed, unwelded lower receiver blanks are
also available fro various companies.
Diagrams
Exploded View of Parts.
Forming the Lower Receiver Diagram.
Lower Receiver Side View with Holes and Cuts.
Hole Placement.
Cutting a Lower Receiver for Square Tubeing.
More Lower Receiver from Square Tubeing.
Yet More Lower Receiver for Square Tubeing.
Cutting Diagrams.