As mentioned on a previous thread, wanting to start shooting again after a long time away.

Looking about I see atlot of the models I know from the past still in circulation. Anything to be weary or conscious of when looking at secondhand guns that could be 20 years old now? Especially PCPs.

How has the Daystate electronic trigger unit held up over time?

How do plastic multi-shot mags hold up over time for the likes of the S410?

TIA