United Shield PST SC650 Ballistic Helmet Level IIIA w/ 4pt Harness System OD Green Medium. PST SC650-IIIA-OD-MD. This Ballistic Helmet from United Shield is constructed from para aramid material and provides lightweight robust protection from ballistic and fragmentation projectiles and other low energy threats. The harness design of the United Shield PST SC 650 Ballistic Helmet offers a stable and comfortable fit with individual adjustment capability. The four point harness is anchored to the shell with ballistic resistant bolts and can be easily removed for cleaning or replacement. For a great way to make sure your head is protected choose the United Shield Ballistic PST SC-650 Helmet. Specifications for United Shield SC650 Military Helmet - PST: Material: Para-Aramid Material Harness: 4 Point Harness System Features of United Shield SC650 Military Tactical PST Hemlet: NIJ Level II and IIIA General duties helmet Para aramid material Lightweight robust protection Protects from ballistic and fragmentation projectiles and other low energy threats Comfortable 4 point harness design Harness can be removed for easy cleaning Package Contents: United Shield SC650 PST Ballistic Tactical Helmet United Shield PST SC650-IIIA-OD-MD: PST SC650 Ballistic Helmet Level IIIA w/ 4pt Harness System OD Green Medium.