When you invest in the new Weaver Tactical Offset Rail Adaptor, you can quickly transition from a primary and magnified opt to a red dot action without any head shift. You can use the Picatinny rail adaptor to connect to your swivel stud and convert your standard rifle using the Picatinny rail option. You can now ensure your hardware works as hard as you do with the unique strength and lightweight design of this product. Made to give your existing hardware a perfect fit, nothing says high quality like this Weaver product.