| Small-arms Protective Insert |
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It is made of Boron Carbide Ceramic . It is able to stop up to three Rifle Bullet s of Caliber smaller or equal to 7.62 mm and Muzzle Velocity smaller or equal to 2,750 feet per second (838 m/s). The ceramic plate is backed with Spectra shield, a material 3 times stronger than Kevlar . The individual plate weighs about 4 pounds, and costs about USD 350 to produce. There is one for the front of the body, one for the back. The mechanism of effect lies in absorbing and dissipating the projectile's Kinetic Energy in local shattering of the ceramic plate and blunting the bullet material on the hard ceramic. The Spectra backing then spreads the energy of the impact to larger area and stops the fragments, preventing an injury of the wearer. The same principle is used for the ceramic tiles used for the armored cockpits of some military airplanes. |
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