Shell Catcher for Winchester Super X Model 1The shell catchers were designed for use on the guns in their factory form. Any additional aftermarket parts such as charge handles or lifters that don't use factory dimensions may not be compatible. These catchers clip on from the bottom of the loading port and then over the ejection port. The charge handle needs to be modified. Instructions can be found here. Parts are 3D printed using PLA+ and may require some minor filing to fit.