Firearm Cartridge Loading Unit (CLU) Diagram - Technical Illustration #2304977 (License: Personal Use)

This black-and-white technical illustration shows a cross-sectional view of a firearm’s cartridge loading mechanism, with labeled components including the Cartridge Loading Unit (CLU) and the ROUND (ammunition cartridge). The diagram emphasizes the mechanical interaction between the CLU’s feed pawl, extractor, and chamber interface during loading. Precision linework reveals internal springs, latches, and alignment features essential for reliable feeding and chambering.

Used on firearms engineering pages, military manuals, gunsmithing tutorials, or technical documentation sites; serves users seeking mechanical understanding of autoloading systems, troubleshooting feeding issues, or designing/repairing small arms.