Easy to install and deploy, with no levers or springs, these sights position apertures at exact factory height. A stainless-steel cross-locking system ensures sight remain upright and zeroed under extreme combat conditions. A push of a button folds the sights securely out of the way (to a profile of just 0.460) and feature a zero-canting attachment system for use on all military and aftermarket receivers. Each click equals 0.50 MOA of adjustment with no tools are required. Blackened Stainless Steel is mil-spec Type III Hard Anodized-Coated T6 Aircraft Aluminum finished in Flat Dark Earth.