海军陆战队用手榴弹发射器反击。

The Marines fired back with a grenade launcher.

现在，我可以拥有M203（M16双筒上下重叠的榴弹发射器）了，不需要乘员就可以使用。

Now, I can have a M203 (an overunder M16 grenade launcher) which is not crew-served.

意识到处境不妙，米勒上士立即跳进他的汗马车炮塔里，抓起MK19式40毫米自动榴弹发射器，向游击队展开猛烈轰击。

Maintaining his situational awareness, Staff Sgt. Miller immediately jumped into his vehicle's turret and engaged the enemy with its mounted MK19 40mm automatic grenade launcher.

当它终于停止，该城海湾和美国的另一船舶移动并发出了登船的海盗船，在那里他们发现了武器，包括火箭推进式榴弹发射器。

When it finally stopped, the Vella Gulf and another U. S. ship moved in and sent a boarding party to the pirates' boat, where they found weapons including a rocket-propelled grenade launcher.

XM 29确定为一种抵肩射击，20毫米口径单发自动榴弹发射器并结合一个紧凑型，重量轻的5.56毫米步木仓做为后备武器。

The XM29 was intended to be a shoulder-fired, semi-automatic grenade launcher in 20 mm calibre and to incorporate a compact, lightweight 5.56 mm rifle as a back-up weapon.