Caliber Armor NIJ Certified Level IV Body Armor Package with Recon Tactical Plate CarrierMaximum Protection. Mission Ready. The Caliber Armor Level IV + Recon Armor Package delivers ultimate stopping power against the most severe ballistic threats. Engineered for those facing high risk engagements, our multi curve Level IV plates stop armor piercing rifle rounds while keeping weight manageable though advanced ceramic composite construction. The Recon Tactical Plate Carrier offers quick release system on both the cummerbund and shoulder