The M855A1 has a copper-jacketed steel core, differing from the previous M855 round which has a lead core. The so-called “green ammo” not only has increased penetration of armor and hard ...
The Guide Hall on MSN8mon
Gray Zone Warfare: How to Build the Smallest SBR M4It’s compact, ideal for close-range gunfights, and packs a punch with M855 ammunition in each magazine. Here’s how to build ...
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