The Specialty Iron I Rifle Peep Verifier functions like reading glasses for your iron sights, bringing sharp focus to blurry posts, reticles, or fibers. Designed to fit exclusively within the Iron I system, these precision lenses install directly into the Iron I Peep Housing and work in conjunction with Iron I apertures (both sold separately). Built with Optical Centered Technology (OCT) for alignment, Protected Lens Technology (PLT) for durability, and Tool-less Aperture Technology (TAP) for easy changes, each verifier provides a different level of magnification to match your individual visual needs and shooting style.