TM-9-2350-256-10

GENERAL - Continued

Ammunition

Description.

The grenade launcher uses RP screening smoke grenades (Figure 3, Item 1). They are filled with a

red phosphorus and butyl rubber mix. Each grenade is approximately 2.6 in. (66.0 mm) in diameter and is 7.2 in.

(182.8 mm) long. They weigh approximately 1.5 lb (0.7 kg) each. The grenades are fired electrically from

dischargers. A spring clip in the grenade base engages a tip plug (a bulb-like metal pin) in the bottom center of

the discharger barrel.

Function.

A grenade is propelled from the discharger barrel when electrical current at the firing contact ignites the

fuze. The fuze ignites the propellant charge and a delay composition and, in-turn, the gunpowder bursting charge.

This bursts the rubber case and ignites the red phosphorus/butyl rubber composition to produce an immediate

smoke cloud.

Dud.

A dud is a grenade that has either failed to be launched from discharger or has been launched but failed to

burst. Remove the dud from the discharger barrel and place it in an empty storage box as referenced in

AR 75-15 (WP 0131). Dispose of dud In Accordance With (IAW) local Standard Operating Procedures (SOP). If a

grenade has been launched but failed to burst, mark location and handle IAW local SOP.

Misfire.

A misfire is the failure of the grenade to be launched from the discharger. When a misfire occurs, make

two additional attempts to fire grenade. If grenade still remains, remove grenade and attempt to fire grenade from

another discharger barrel. If grenade still remains, treat as a dud.

Figure 3.

Grenade.

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