Touchup material. Exterior surfaces on metal
components which are bright or without finish after assembly
operations , such as the surfaces of rivets, pins, screw beaus,
staking marks and the like may be refinished using materials and
procedures in accordance with the touchup procedures of MIL-W-
Maintainability. The stock shall not have to be
removed or loosened from the receiver to permit removal,
maintenance, inspection and cleaning of the following subassembly
Trigger - Sear - Hammer
In addition to
3.12 Human engineerinq characteristics.
meeting the design requirements specified herein, shotguns shall
meet with the approval of the government for human engineering
c h a r a c t e r sties such as size, shape, and balance; deemed
essential for guard, riot control, and combat purposes.
3.13.1 Type I. The overall length of Type I shotgun
including bayonet adaptor shall be from 39 to 44 inches.
3.13.2 Type II and Type III. The overall length of Type II
and Type III shotgun shall be from 39 to 42 inches, measured with
a nominal 20-inch barrel.
3.14 Stock shape. The stock shall have a drop of not less
than 1 1/4 inches or more than 1 3/4 inches at the comb and not
less than 2 1/4 inches or more than 2 3/4 inches at the heel.
Measurements for drop shall be made from a line extending from
the highest point of the barrel at the muzzle through the highest
point of the receiver.
The length of pull (distance
3.15 Trigger pull length
from the trigger to the butt of the stock measured parallel to
the centerline of the bore) shall not be less than 13 5/8 inches
and not more than 14 inches.