IGene, I have the ball bearing handled thanks. I would purchase the screw and spacers for my mag. Tube. This is an early model 29 serial #74xx before they made changes to the lifter in the a & b models. How much do you want for them? Do you have a bolt body for a Stevens 15a single shot 22lr bolt action? Same bolt body works on the 120, 125, 15, 15a, 15b & 15y Thanks