The 1050 conversion kit includes all the items needed to swap from one caliber to another; a new complete toolhead assembly setup in the caliber, the hopper ring, seating stem, lock nut, top funnel, flexible feed spring, bushing, and a 1050 feed column.
If you already have one of our GSI bullet feeders or if you are considering buying one for two different calibers then a conversion kit may be an option for you. Buy one complete bullet feeder assembly in the caliber of your choice. Then you can buy a conversion kit for any other caliber you reload.
Note: Please specify if you are using an RL 1050 or a Super 1050 machine.