D-9. MACHINE GUN RING DRILL STOP
Make the Machine Gun Ring Drill Stop from round aluminum stock and setscrew according to the following instructions.
Refer to the parts list and figure for details.
0.75 in. OD (19 mm) X 0.25 in.
(6.3 mm) long
0.164 in. OD (4.1 mm) x 0.125 in.
length (3.2 mm) 32 UNC
Figure D-20. Machine Gun Ring Drill Stop
a. All dimensions are in in. (millimeters).
b. Drill 0.393 in. (9.9 mm) diameter hole through as shown in Figure D-20. Machine Gun Ring Drill Stop.
c. Drill 0.125 in (3.2 mm) diameter hole through for setscrew as shown in Figure D-20. Machine Gun Ring Drill
d. Thread setscrew hole 0.164-32 UNC.
e. De-burr and remove sharp edges.
f. Insert setscrew (2) into Machine Gun Ring Drill Stop (1).
D-10 MACHINE GUN RING WOODEN SUPPORT
Cut from bulk wood stock according to the following information.
a. Fabricate from MIL-STD 736 Group IV untreated bulk wood stock.
b. Cut three (3) lengths of 2 X 4 inch stock 8 inches (203 mm) long.
c. Sand and remove sharp edges.