If you have all of the parts to your triggerguard, it can be brazed back together. If you don't know how or have the equipment to do the brazing, you can take it to a gunsmith and have him make the repairs. If you don't have a gunsmith near by, almost any welding shop can do the brazing for you but since they are not gunsmiths, you will need to have them do it while you watch to be sure that everything is lined up properly. If you have it done at a welding shop, you will most likely have to do the finish work of filing and working it with emery cloth to make the braze line disappear.