What is M193?
This entry details the critical differences between M193 5.56x45mm NATO and commercial .223 Remington ammunition, as explained by firearms expert Karl Kasarda. Key distinctions include military specifications for primers, case sealing, annealing, velocity, and chamber design, highlighting safety considerations when choosing ammunition for AR-15 platforms.




![5.56mm [Part II] - M193 vs. M855 Green tip](https://i.ytimg.com/vi/6Iu-_TkpfO8/hqdefault.jpg)








