Hagen Prototype Semiauto Rifle
This guide details the disassembly and operational features of the rare Hagen Prototype Semiauto Rifle, as presented by Ian McCollum. It covers the action type, proprietary cartridge, loading mechanism, unique round counter, and sighting system. Disassembly involves removing a single screw to separate the receiver halves. The rifle's historical context and testing results are also highlighted.











