Review on Maxshield: Durable and Thick Lexan Sheet Polycarbonate for Versatile Applications by John Pound

Withstands 400fps from 2ft on multiple auto and single fires. Uses a 2" square piece cut with a band saw. A clamp was used to hold the piece and it was fired 30 times without cracking, deforming or even wrinkling. The explosive is used when Impact shattered.If you need protective shields for optics or airsoft cameras, this material is excellent.There is no obvious flexing on impact, but it is recommended to leave a small gap between the lens and the plate to prevent it energy is transferred to the protected object (glass doesn't tend to bend or absorb energy).I will buy another one later.Far superior to any product sold on airsoft websites.(I see you evike. com with their crappy plexiglass panels that just break)