Airsoft snow wolf m99 trigger parts?

So I took apart my m99 because it was slam firing and it's the sears that aren't working. I know this because I brought it to a shop but they didn't have the parts. Now I'm not sure what the sears are so if someone can describe them that would help. I also know I kinda destroyed these two springs that seem to have held the spring back when I pulled the bolt back. I've looked everywhere for replacement spring things (I'm pretty sure these are the sears) but I can't find em so if someone can post a link thanks :) I'd also look at a whole new trigger box if needed. I know its aps2 compatible but I have no idea what that means lol. Any links or info will help, thanks!