be armed to the hilt(/to the teeth); fully armed ❍ 现在我们不是用炭块和车警搏斗了，我们对付的是～的鬼子，没有枪怎么能行呢？(知侠《铁道游击队》66)We’re no longer only dealing with train guards who could easily be fought with coal blocks. Now we’re going to deal with the Japanese who’re armed to the teeth. We’re powerless withoutweapons.
全副武装quán fù wǔ zhuānɡ
形容全体人员都装备武器弹药，准备上战场。a review order, fully armed, with field pack, armed to the teeth, in heavy marching order