1" Rimfire 13mm Grooved Rings Low Gloss Finish by LEUPOLD OPTICS Product Overview now offers the Leupold 1" Rimfire 13mm Grooved Rings Low Gloss Finish. These Rimfire rings are constructed of high strength steel. The Rimfire rings mount to your 13mm rail or integral base on your favorite 22 firearm. The rings have an exceptionally strong interface grip to ensure that your scope does not shift during use. These rings are for one inch tube scopes and will secure it to your firearm permanently. Summary The Leupold 1" Rimfire 13mm Grooved Rings are perfect for your rimfire firearm. These rings mount directly to your 13mm rail. These rings are lightweight and have an overall height of .72". Specifications and Features: 1" All Steel Construction Fits 13mm Rail .72" Height