firelock

plural firelocks

1. historicalA form of gunlock, in which the priming is ignited by a spark.First known use 16th c.
2. broadlyhistoricalA firearm using such a gunlock.First known use 17th c.

   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

   2 more examples

   He looked round for his gun, but in place of the clean well-oiled fowing-piece, he found an old firelock lying by him, the barrel encrusted with rust, the lock falling off, and the stock worm-eaten.

   1819 June 23, Geoffrey Crayon [pseudonym; Washington Irving], “Rip Van Winkle”, in The Sketch Book of Geoffrey Crayon, Gent., number I, New York, N.Y.: […] C[ornelius] S. Van Winkle, […], →OCLC, pages 76–77

   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