SB 742-1
(1) CS1 has a powerful lachrymal effect and is irritat-
ing to the upper respiratory passages, causing coughing, diffi-
RIOT CONTROL GRENADES
culty in breathing and chest tightness. Heavy concentrations
will cause nausea and vomiting as well. Incapacitation occurs
15 to 30 seconds after exposure and endures from 30 minutes
a. FSC: 1330
to several hours depending upon the dosage concentration. CS
Grenade, Hand, Riot, CN, M7, is more persistent and has a more severe reaction than CN.
b. Ammunition Type:
M7A1; CS, M7A3; CS, M47; CN1, ABC-M25A1; CS1,
(2) The grenade body is spherical. It is made of two
ABC-M25A2; and CS, M58
plastic hemispheres cemented together.
The two pieces
together form a burster well and a slider housing.
c. Riot control grenades are used to control insurgencies
and for other tactical missions. They may also be used to
(3) The
fuze
is
an
integral
pyrotechnic
simulate casualty agents during training.
delay-detonating type. The fuzing components consist of an
arming sleeve, arming pin, firing spring slider assembly and
d. Grenade, Hand, CN, M7 and M7A1 (G960).
firing pin. The slider assembly contains a primer, pyrotechnic
(1) These grenades are burning type riot control agent delay column, and a detonator. The grenade is assembled with
grenades. CN has a powerful lachrymal effect and is irritating a safety pin and pull ring. Safety clips are not required with
to the upper respiratory passages. In higher concentrations it these grenades.
is irritating to the skin, causing a burning and itching sensa-
i. Pocket CS Grenade, M58 (G933). This is a burning type
tion. Incapacitation occurs at 15 to 30 seconds after exposure
riot control agent grenade. The body is a thin-walled, two
and endures for 5 to 20 minutes depending upon dosage
piece aluminum cylinder. It contains a CS-pyrotechnic com-
concentration.
position. There is a hole in the base of the body which is used
(2) The grenade bodies are of thin sheet metal and are for agent emission after functioning. The grenade is fuzed with
cylindrical in shape. The filling is compressed into the grenade the M201A1E1 fuze which is similar to the M201A1.
body, a tapered hole being formed through the body of the fill-
j. Fuze, Hand Grenade, M201A1 (G874).
This is a
ing. The top surface of the filling and the tapered walls of the
hole are coated with starter mixture (to aid ignition of the fuel pyrotechnic delay igniting fuze. The body contains a primer,
by the fuze). Grenades are assembled with the M201A1 first fire mixture, pyrotechnic delay column, and ignition mix-
ture. Assembled to the body are a striker, striker spring,
pyrotechnic delay-igniting fuze.
safety lever and safety pin with pull ring. The split end of the
e. Grenade, Hand, CS, M7A3 (G963).
safety pin has an angular spread.
(1) The M7A3 grenade is a CS filled, burning type
k. Fuze, Hand Grenade, M227 (G869). This is a pyrotech-
grenade. CS has a powerful lachrymal effect and is irritating
nic delay igniting fuze. The body contains a primer, first fire
to the upper respiratory passages causing coughing, difficulty
mixture, pyrotechnic delay column, and ignition mixture.
in breathing and chest tightness. Heavy concentrations will
Grenade fuze is restrained from functioning by the safety cotter
cause nausea and vomiting as well. Incapacitation occurs 15
pin, sliding safety latch, and handle. When the safety cotter
to 30 seconds after exposure and endures less than 10
pin is removed and the safety latch is pushed rearward from
minutes after personnel are removed to fresh air.
the lock pin, the handle is unlocked and grenade is armed.
Releasing the handle causes the arming pin spring to eject the
(2) The grenade body is a cylinder made of thin sheet
arming pin. This releases the firing pin, allowing the firing pin
metal. The filler is compressed into the grenade body with a
to activate the primer. The primer ignites the first fire mixture,
starter mix.
Grenades are assembled with the M201A1
which flashes and ignites the delay mixture. This in turn, ig-
pyrotechnic delay-igniting fuze.
nites the ignition mixture. The ignition mixture burns through
an aluminum foil shield on the bottom of the fuze and ignites
f. Grenade, Hand, CS, M47 (G922). The M47 is a burning
the pyrotechnic mixture in the grenade body.
type grenade. It consists of a rubber body assembly, an M227
fuze, and a filling of CS pyrotechnic mixture. The grenade
weighs 410 grams (approximately 1 lb), and is 3-1/2 inches in
diameter. The gray grenade body is made of two rubber
a. Grenades should never be lifted or handled by the
hemispheres vulcanized together. The top half of the grenade safety pin pull ring.
contains the fuze, and the bottom half contains the filling hole
b. Before any grenade is removed from its fiber container,
and the exhaust port. The grenade is filled with approximately
it must be thoroughly inspected to see that the safety pin is in
185 grams of CS-pyrotechnic granulated mix.
place, undamaged, and prongs of the safety pin are spread
g. Grenade, Hand, CN1, ABC-M25A1 (G927). This is a approximately 45 degrees or diamond crimped. This inspec-
bursting type grenade. The grenade body is spherical. It is tion must also ensure that the fuze lugs are not cracked or
made of two plastic hemispheres cemented together. The two broken and the safety lever ears are properly assembled under
pieces together form a burster well and slider housing. It is the lugs.
assembled with a pyrotechnic delay-detonating type integral
c. If the grenade is upside down in the fiber container (fuze
fuze. The fuzing components consist of an arming sleeve,
arming pin, firing spring, slider assembly and firing pin. The not visible), or if any of the above discrepancies are noted, it
slider assembly contains a primer, pyrotechnic delay column should remain inside the container and action taken to dispose
and a detonator. The grenade is assembled with a safety pin of it safely.
and pull ring.
Safety clips are not required with these
d. Any riot control agent may present an inhalation and ir-
grenades.
ritant hazard. Prolonged exposure of the eyes and respiratory
h. Grenade, Hand, CS1, ABC-M25A2 (G924). This is a system should be avoided. Wear protective masks to avoid
excessive exposure when loose or airborne riot control agent is
bursting type grenade.
present.
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