The Guardian 4s16™ Level IV Stand Alone ceramic plate provides rifle armor protection from armor-piercing rounds. Made in the USA, the 4s16 has been independently tested by an NVLAP accredited laboratory according to NIJ Standard 0101.06 level IV ballistic threats. The HighCom 4s16 is a thinner and lighter alternative to the HighCom 4s17 and 4s17m, but does not have a ballistic testing profile as extensive. HighCom Armor is a leading body armor manufacturer and supplier trusted globally since 1997 and has provided over a million pieces of armor to US armed forces over the past decade. HighCom has never had a failure or penetration of its armor and is regarded as one of the most trusted names in body armor. SOLD AS ONE (1) PLATE. MADE IN USA.