Videos tagged with Proprietary Cartridges

This guide details the mechanical operation of the very early Mars Pistol #4, as presented by Ian McCollum. It covers the unique long recoil action with a rotating bolt, the distinctive magazine design requiring proprietary cartridges, and the specific features of this prototype, including its three locking lugs and non-standard sights. The explanation highlights the complexity and rarity of this experimental firearm, emphasizing its historical significance as one of the most powerful automatic pistols of its era.