if it is a 223 cal, then yes
.223 Remington can be cycled in a 5.56x45 rifle; 5.56x45 should not be cycled in a .223 Remington firearm.
Yes it does, unless your barrel is stamped .223 .
NY Legal STG-556 has all of the necessary mods to make it New York State legal for ownership by individuals
100-500 USD or more depending on specifics
556
556 * 556 = 309,136
556 = 55,600%
why you asking me 556-thousands = 556/1000 = 0.556 as a decimal
70% of 556 is 389.2. Which means that 166.8 is 30% of 556.
556
It is: 556 = DLVI