firelock

Etymology

From fire + lock.

noun

1. (historical) A form of gunlock, in which the priming is ignited by a spark.
2. (by extension, historical) A firearm using such a gunlock.
   Alfred, surprised to meet his father, whom he thought absent from home, […] stood, holding his firelock in one hand, and his hat in the other […] 1824, Town and Country Tales, page 115
   Before we were out of the forest, however, we saw about ten peasants, some armed with firelocks [translating Feuer-rohren], others busy burying something. 1999, Jakob Grimmelshausen, translated by Mike Mitchell, Simplicius Simplicissimus, Dedalus, published 2016, page 48