This video details the identification and historical context of Canadian-made Colt M4 carbines (Diemaco/Colt Canada) entering the US civilian surplus market. It highlights key visual and internal markings distinguishing them from US-made Colts, such as grey parkerized finishes, Diemaco forge marks, 'CC' barrel markings, and offset gas key staking. The discussion covers the impact of the 1994 Assault Weapons Ban and the collectibility of these unique LEO trade-in rifles.
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