The 9812-R1 stand-alone armor piercing plate has been tested under the NIJ 0101.04 type IV protocol. The SAPI sizes are multi-curve plates and provide a high-end plate solution as level IV lightweight plates. The 6x6 single-curve rectangle cut side plate is a robust offering, providing rifle threat protection to upper arms and side torso. This plate features a thinness of 0.75 inches.