The mainspring on my Little Fellas rifle broke. I contacted Jim Chambers and sent a picture of it, they told me to send it back and they will replace free of charge. It’s on its way, but I thought I should order another one for the future. I checked their parts list and there appears to be only one mainspring. I have a another Chambers lock that not being used, can I take the spring off of it and use it in my Little Fella’s lock?