The term FIREARM FEATURE is composed of two crossword solutions: ACTION (6 letters) and SAFETY (6 letters). An ACTION is the mechanism of a firearm that loads, cocks, and fires the gun. It is typically composed of several parts, including the hammer, sear, and trigger. A SAFETY is a feature of a firearm designed to prevent accidental discharge. It is usually a switch or lever that must be engaged in order for the gun to fire.