The Specialty Iron I Rifle Peep Aperture 1/8″ (.125″) offers a wider sight window while maintaining precision and clarity for shooters who experience blurring or starbursting at the reticle or post. Designed exclusively for use with the Iron I Peep Housing (sold separately), this aperture features advanced Optical Centered Technology (OCT) for perfect verifier lens alignment, along with Protected Lens Technology (PLT) and Tool-less Aperture Technology (TAP) for quick, tool-free adjustments. Lightweight, durable, and easy to clean, this aperture enhances your iron sight system for optimal accuracy.