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Personnel Armor System for Ground Troops (PASGT, pronounced / ˈ p æ z ɡ ə t / PAZ-gət) is a combat helmet and ballistic vest that was used by the United States military from the early 1980s until the early or mid-2000s, when the helmet and vest were succeeded by the Lightweight Helmet (LWH), Modular Integrated Communications Helmet (MICH), and Interceptor body armor (IBA) respectively.
The vest will stop lower velocity fragments and has removable neck, throat, shoulder, extended back and groin protection. Additionally, two ceramic plates may be added to the front and back of the vest, with each capable of stopping up to three hits from the round marked on the plate. For SAPI, this is a caliber of up to 7.62×51mm M80 FMJ.
It is between 39–57 mm (1.5–2.2 in). The male has a metallic blue-green body and black wings. The female is duller brown with smoky wings that have white spots near the tips (pseudopterostigmata [3]). The naiad is pale brown with darker markings. There are some spots in the wings. [4] [verification needed]
The green darner or common green darner [5] (Anax junius), after its resemblance to a darning needle, is a species of dragonfly in the family Aeshnidae. One of the most common and abundant species throughout North America , it also ranges south to Panama . [ 6 ]
At the time this vest was introduced, it was a unique feature, but it has since been replicated on a number of other vests. The current vest uses a simplified system to attach and release the vest components, making reassembly quicker and easier. The pull handle for the vest is itself secured with a Velcro loop to avoid accidental pulling.
Male green darner, Anax junius has noniridescent structural blue; the female (below) lacks the colour. Some dragonflies, such as the green darner, Anax junius , have a noniridescent blue that is produced structurally by scatter from arrays of tiny spheres in the endoplasmic reticulum of epidermal cells underneath the cuticle.