AR500 Armor VS M855A1 & M193 (14.5, 16 & 18“ Barrels)

InRange is supported by viewers like you and every $1 helps! We know that M855a1 and M193 will go through AR500 steel armor effortlessly with a 20“ barrel, but what barrel length does it take for this to work? Will a 14.5“ cut it? 16“? 18“? Does it require a 20“ barrel? Let’s find out.