It only takes a single BB to damage your scope or red dot lens. With AIM Sports tactical scope and red dot lens protector, damaged lenses will be the least of your worries. Constructed out of 4mm thick acrylic, these protective shields are built to prevent high-impact BBs from making contact with your red dot scopes, magnifiers, rifle scopes and even HD action cameras. In addition, AIM Sports included a spare protector lens to fit your needs. This protector also comes with a rail mount that will fit onto nearly any Weaver or Picatinny rail section.