Enhance your targeting ability with the 1x40 ION Sight by Barska. This compact reflex sight allows the user to quickly select one of four reticle patterns that have been designed for different targeting scenarios. The wide 40mm objective lens provides unlimited eye relief and field of view for fast target acquisition. A precision quick-release Picatinny/Weaver-style mount attaches securely to your rifle and has been designed to maintain accuracy after multiple attachments and detachments.