Flintlock as a noun is an early type of firearm, using a spring-loaded flint to strike sparks into the firing pan. while Firelock as a noun is an old form of gunlock, as the flintlock, which ignites the priming by a spark.
Part of speech: noun
Definition: An early type of firearm, using a spring-loaded flint to strike sparks into the firing pan.
Part of speech: noun
Definition: An old form of gunlock, as the flintlock, which ignites the priming by a spark.
We hope you now know whether to use Flintlock or Firelock in your sentence.