Technical data

TM 9-1005-319-23&P 0036
0036-3
b. The side of the adapter bar with the cut off corners (1) is the top and the side with the square
corners (2) is the back. The portion of the bar must be placed so the cut corners face the front of the
M12 storage rack.
c. Holding the adapter bar at an angle, place one end into position inside the rear leg of the M12
storage rack. Lower the other end of the bar into position. Allow the adapter bar to rest on the
M12 storage rack.
d. Clamp both ends of the adapter bar into position. Mark the center line of the leg and adapter bar
where they meet (see Figure 1). Using a center punch, mark the location of the holes to be drilled
where the center lines cross. The holes must be centered on both the leg and the adapter bar. Drill
a 1/8 in. pilot hole through both M12 storage rack legs and the ends of the adapter bar. Drill a 3/8
in. hole through both M12 storage rack legs and the ends of the adapter bar using the pilot hole as
a guide. Remove the adapter bar. File the edges of all holes smooth. Paint all bare metal surfaces
with olive drab enamel paint (WP 0045, item 16).
e. Reinsert the adapter bar into position on the M12 storage rack. Using two 3/8 in. x 2 in. machine
screws (MS35206-315, NSN 5305-00-984-5695 or equivalent), four washers (MS27183-15, NSN
5310-00-809-4061 or equivalent), and two nuts (MS35649-2382, NSN 5310-00-056-3395 or
equivalent), assemble adapter bar to M12 storage rack and tighten securely. The bolts can be
inserted from either the back or the front to meet your requirements. If the M12 storage rack is
placed close to a wall or another M12 storage rack, it is recommended that the bolts be inserted
from the back.
f. Tack weld, braze, or peen the threaded portion of the bolt to the nut to prevent easy removal.
g. Place M12 storage rack back into position and replace the weapons.
NOTE
It is necessary to either remove the carrying handle or move it back one notch in
order to secure the locking bars of the M12 storage rack during storage of the M16A4
rifle and M4/M4A1 carbine. DO NOT mix back-up carrying handles from one weapon
to another; it may change the zero of the last weapon.
2. It is recommended that the rail protector (WP 0045, item 29) be used during storage of the carbines
when the carrying handle assembly or some accessory is not installed on the upper receiver to prevent
damage to the mounting surface on the upper receiver.