Post Views: 222 For the sake of brevity, the author has split the Locked Systems portion of this article into two parts.  Part 1 deals many of the less common subcategories of locking systems, including gas operated guns, fixed barrel guns, and long recoil guns.  For a review of short recoil operated guns, please refer … Continue reading Pistol Phylogeny Part 4 – Locked (Various Designs)