Hi all, I bought a second hand AA S410 TDR in .177 and love it. The only issue is the safety is missing from the trigger and I’d like to replace it. So I was thinking of changing the whole trigger and upgrade it.....

No idea what trigger to go for and should I swop it myself. Fairly competent with mechanical stuff. Had a nightmare with a BSA lightning trigger so slight put off by that.

Thoughts, ideas and suggestions please.