SPRING RETAINER AND CAP DETENT SYSTEM FOR A TUBULAR FIREARM MAGAZINE

摘要

A detent system for tubular magazine firearms serving the dual function of retaining the magazine spring within the magazine tube when the cap has been removed while also acting as a detent to keep the magazine cap securely tightened during normal use. A plastic member is provided with full and partial longitudinal slots which cooperate with indents on the magazine tube to facilitate assembly of the detent system within the tube. The slots and detents also cooperate to maintain the plastic member securely spring biased in a position so that serrated teeth along a peripheral end surface will intermesh teeth on the inside periphery of the cap in order to maintain the latter securely fastened to the magazine tube.