This adapter is made to fit the following actions. It a possible that you own one of these receivers but wanted a different bolt knob that you are more familiar with or generally prefer. Now you have that option. The female end screws directly onto their handle and then you thread your favorite bolt knob on the male end. It's as simple as it gets. Our bolt knob is shown in the photo for representation purposes.
This adapter fits our standard Remington 700 bolt knob.