上膛了

is loaded

→ 上膛
phrase Rare #24,087
is loaded Used for a firearm whose bullet has been loaded into the chamber; 了 indicates that the loading is complete.
CH: 枪已经上膛了,别碰它。
EN: The gun is loaded, so don't touch it.

上膛了

It’s loaded.

— 第五元素 (1997)

子弹已经上膛了

The bullet is already chambered.

— 这个杀手不太冷 (1994)

上膛了已经

It's already loaded.

— 怒火青春 (1995)

已经上膛了

It's already loaded.

— 烈日灼人 (1994)

我这儿有一个上膛了

I've got one here, and it's loaded.

— 浪潮 (2008)