The Guardian 4S17M™ is one of the top selling rifle armor solutions by HighCom. The 4s17m is a level IV stand alone multi curve plate that provides armor-piercing protection at an affordable cost. Engineered with a ceramic strike face and PE backing, the 4s17m is DEA compliant and is NIJ 0101.06 compliant “Certified” by NIJ and can be found listed on the NIJ’s CPL (Compliant Product List). Multi Curve (SAPI). HighCom 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.