First Pattern 1865 Allin Conversion - Trapdoor Springfield
This guide details the operation of the First Pattern 1865 Allin Conversion, the inaugural variant of the Trapdoor Springfield. It covers the historical impetus for its creation, Erskine Allin's design, and the mechanical aspects of its trapdoor breech-loading system, including its original .58 rimfire caliber and unique extractor. The information is presented with the high authority expected from an expert in historical firearms.










