Ideal for hunters and shooters who travel frequently, Leupold QR Extension Rings possess a precision quick release mechanism that allows you to detach and reattach your riflescopes within 1/2 MOA of original impact point correction. This pair also offers an extra extension that is necessary for mounting shorter scopes on longer actions. Machined from steel for superior strength and durability, these rings will accept 1" maintubes and will work with any Leupold QR bases.