Guard Dog Body Armor Ridgeback Multi Hit Armor Plate 10x12in Level IV+ Multi-Curve w/ Spall Guard Black. The Ridgeback M4+ is one of the most popular and strongest plates on the market and has now lost weight and gained strength. Utilizing a unique honeycomb ceramic tile face the Ridgeback M4+ features a multi-curve design and offers enhanced protection above that of the NIJ Level 4 rating featuring the ability to take multiple impats of .30-06 M2 AP ammunition. The new Ridgeback M4+ combines our Ridgeback plate and anit-spall sleeve to deliver the most complete body armor available. Contains four layers of front facing Aramid fibers and rear facing trauma pad. Specifications for Guard Dog Body Armor Ridgeback Multi Hit 10x12in Level IV+ Armor Plate: Manufacturer: Guard Dog Body Armor Color: Black Threat Level: Level IV+ Plate Dimension: 10x12 Package Contents: Guard Dog Body Armor Ridgeback Multi Hit 10x12in Level IV+ Armor Plate Guard Dog Body Armor RIDGEBACK: Ridgeback Multi Hit Armor Plate 10x12in Level IV+ Multi-Curve w/ Spall Guard Black