Bolt-hold open apparatus
作者： Chase B. Sisgold
DOI:
关键词: Lock (firearm) 、 Engineering drawing 、 Paddle 、 Mechanical engineering 、 Engineering
摘要: A firearm-magazine interface for replacing an existing of many firearms such as assault rifles, namely AK series (AK74, AK47, etc.) provides a lock that holds open the bolt after last round is fired from magazine. The also includes single-button magazine eject. After firing round, bolt-hold urged upwardly in path returning and catches face bolt, thereby locking until replaced with replacement magazine, at which time release paddle pulls downwardly, releasing to chamber first
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