If have come by a Traditions cap lock 50 cal. With a 20 inch barrel.No model number or name.It has 700 k on one side and 126417 on the other. I have been searching the web and I have read about a ‘thumper’’ on here . Could this be what I have.I’ve been cleaning the surface rust of and polished the mainspring then broke it putting it back.I have found a lot of spring that look like it but it would be nice to know what i have .Please help