Rifle Grenade

Rifle Mounted Grenades
Rifle mounted grenades are equipped in Call of Duty 3 during any Multiplayer game mode. This explosive is only available when a player has the M1 Garand, or the Karabiner 98k. These Rifle mounted grenades moved on into Call of Duty 4: Modern Warfare which are known as a M203 grenade launcher.

Propulsion
Rifle grenades fit over the barrel of a rifle so that when a blank is fired, the forces from the combustion propels it forward. Needless to say, they had low range and accuracy and are quite inferior to the grenade launching devices we have today.

Call of Duty: World at War
They reappeared in Call of Duty: World at War as an attachment for rifles. Unlike the Grenade Launchers of Call of Duty 4, it requires that you complete the final Marksman challenge for a weapon (except the M1 Garand rifle, as it has a Sniper Scope as it's final Marksman.) Note that the rifle grenade has a greater lob effect than the grenade launcher. It also moves slower and has a larger blast radius. Rifle grenades can only be equiped to bolt action and certain semi-auto rifles in Call of Duty: World at War. The rifle grenade is greatly hated more so in one life games like search and destroy and hardcore search. Players consider the rifle grenade as a skilless weapon and often referred to as the "noob stick" (This refers to the fact that the weapon is indeed a grenade mounted on a stick).

Weapon Combatibility

 * SVT-40
 * Gewehr 43
 * M1 Garand (A glitch says that it is unlocked at Marksman IV, but it is actually unlocked at Marksman III.)
 * M1A1 Carbine
 * Springfield
 * Arisaka
 * Mosin-Nagant
 * Kar98k
 * PTRS-41

Tactics
Use the lob to your advantage. A single grenade can be fired far across a small or medium map easily. In Search and Destroy, in levels like Castle and Upheaval it is possible to kill spawners at the start of each round (Such a strategy is regarded as underhanded and generally incurs a great deal of anger from the opposing team). The Sleight of Hand and fireworks perks increase the lethality and effectiveness of the rifle grenade.

If you have played Call of Duty 4: Modern Warfare, you will notice that the launchers are much more powerful, in the sense that they propel their grenades over a larger distance. This means that the rifle grenades in Call of Duty: World at War will take some getting used to. It is advised to 'train' in split screen. However, this lack of propulsion can be used at your advantage. As it is said above, it is now possible to kill spawners in maps such as Castle.