CR Apex Archery Scope with 4X Lens Machined aluminum housing With this housing, you can shoot a lens only, or you can install a fiber-optic pin Has a threaded, lens-retainer ring and built-in level Also come with Fiber-Optic Pin with washer and nut and 3 orange fiber optic pieces Stainless steel 10-32 scope rod Converts to either right or left hand O.D. = 1 1/4" - I.D. = 1 1/16'