7
TOP VIEW OF THE RECEIVER OF AN EARLY 1927A1. THE SMALLER HOLE TOWARD
THE FRONT IS THE HOLE USED AS THE HOLD OPEN DEVICE FOR INSERTION OF
A DRUM.
INSIDE VIEW OF THE RECEIVER WITH THE HOLD OPEN DEVICE.
COMPARISON ( LEFT) OF A WEST
HURLEY ACTUATOR AND (RIGHT) A CUR-
RENT PRODUCTION KAHR ARMS ACTUA-
TOR. BOTH SHOW THE ELLIPTICAL
HOLE IN THE BASE TO ALLOW USE OF
THE HOLE IN THE RECEIVER AS A HOLD
OPEN DEVICE.
ELLIPTICAL HOLE TO ALLOW THE
ACTUATOR TO BE RAISED INTO THE
RECEIVER HOLE.