Specialty Iron I Rifle Peep Kit Contains 6 Apertures and 6 Verifiers with Case Includes six Iron I apertures: 1/32" (.031"), 3/64" (.046"), 1/16" (.063"), 3/32" (.094"), 1/8" (.125"), 0.148";Includes six Iron I verifiers: #4 Silver, #5 Purple, #6 Pink, #7 Blue, #8 White, #9 Orange;Comes with protective storage case;Optical Centered Technology (OCT) for improved lens centration;Protected Lens Technology (PLT) for crack resistance;Tool-less Aperture Technology (TAP) for easy installation and removal;Verifiers enhance clarity of front sight or reticle;Aperture weight: 8.2 grains;Verifier weight: 2.0 grains;Compatible with Williams, Lyman, and Skinner threaded peep sights (Iron I only)table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 7600 Product Group Code: 7600J Product Sub Group 1: 7600J1 Inactive: Yes Prop65 Applies: No