20% NATO Block 16x6x6Our 20% NATO Ballistic Gelatin Block is the perfect medium to test a variety of projectiles terminal performance. As its name suggests, this gelatin block is specifically produced to meet NATOs 20% gel standards for ballistic impact testing, which stops projectiles much sooner than 10% gelatin blocks do. In contrast to other available ballistic gelatins, our gel stays clear through multiple impacts and iterations of melting reforming. This means that