Auxiliary grenade launchers are smaller versions of the Grenade Launcher which attach to other Imperial weapons such as bolters, lasguns, and autoguns (though pistols are too small to carry them) and allow the user to lob pre-primed and preloaded grenades at the enemy.

辅助榴弹发射器是榴弹发射器的较小版本，可连接到其他帝国武器，如爆矢枪、激光枪和自动枪（尽管手枪太小而无法携带），并允许使用者向敌人发射预激发和预装载手榴弹。

Auxiliary Grenade Launcher underslung a Bolt Rifle barrel 辅助榴弹发射器在爆矢步枪枪管下方

The auxiliary launcher is used by throwing a catch which deactivates the primary weapon's firing mechanism and activates the launcher's, allowing a pull of the trigger to launch a single grenade at the enemy and hopefully destroy it.

辅助发射器通过撞击一个锁闩来使用，该锁闩会关闭主武器的射击机制并激活发射器，从而扣动扳机向敌人发射一枚手榴弹，并希望摧毁它。

Many auxiliary grenade launchers have their own internal magazine allowing them to carry multiple grenades, however they are always preloaded with a single type of grenade. This is most often krak grenades, providing extra short-range firepower and vehicle-busting capacity, but they also accept frag grenades and other common varieties. Other launchers are single-shot only, and while able to fire a variety of grenade types their added weight and cumbersome nature means most users rarely bother to reload once expended.

许多辅助榴弹发射器都有自己的内部弹匣，可以携带多枚手榴弹，但它们总是预装了一种手榴弹。这通常是穿甲手榴弹，提供额外的短程火力和车辆摧毁能力，但它们也接受破片手榴弹和其他常见品种。其他发射器只有单发，虽然能够发射各种手榴弹类型，但它们增加的重量和笨重的性质意味着大多数使用者在用完后很少费心于重新装弹。