: Authentic military frames must have "UNITED STATES PROPERTY" stamped on the frame (usually above the serial number).
: Critical for authenticity. Genuine military barrels often feature small proof marks (like "P" or "HS") on the lug or above the chamber. colt-1911-military-parts
The primary guide for centers on identifying original components versus modern replacements or "rebuild" parts. Genuine military 1911s fall into two main categories: the original M1911 (1911–1924) and the improved M1911A1 (1926–1945). 1. Key Component Identification : Authentic military frames must have "UNITED STATES
