M16A2/M4 Ammo, Load and Unload
M193 & M855 Ball
M193 Ball• Standard cartridge for field use with the M16A1 (1 in 12 twist) but can be used in M16A2 (1 in 7 twist)
• 55 grain full metal jacket (FMJ) lead alloy core bullet
• No identifying marks
M855 Ball
• For use in M16A2
• 62 grain full metal jacket (FMJ) lead alloy core bullet with steel penetrator
• Green tip
• Linked with M856 tracer for use in M249 Squad Automatic Weapon (SAW)



