Custom Armor Group 4s16 Level IV Stand Alone Multi Curve Armor Plate 8.75in x 11.75in. The 4s16 has been independently tested by an NVLAP accredited laboratory according to NIJ Standard 0101.06 level IV ballistic threats. Specifications for Custom Armor Group 4s16 Level IV Stand Alone Multi Curve Armor Plate: Manufacturer: Custom Armor Group Quantity: 1 Fabric/Material: Ceramic Threat Level: Level IV Armor Cut: SAPI Armor Curve: Multi-Curved Depth/Thickness: 0.75 in Features of Custom Armor Group 4s16 Level IV Stand Alone Multi Curve Armor Plate NIJ Standard 0101.06 TESTED: This product has been independently tested by an NVLAP accredited NIJ approved laboratory to meet or exceed ballistic resistance as specified under NIJ Standard 0101.06 RST: Rifle Special Threats Validated Package Contents: Custom Armor Group 4s16 Level IV Stand Alone Multi Curve Armor Plate Custom Armor Group 4s16-SAPI-S: 4s16 Level IV Stand Alone Multi Curve Armor Plate 8.75in x 11.75in