While you can still find them, pick up a few firing assembly parts for the 74 ... a trigger and hammer spring would be the minimum to have in reserve. The 74 is usually remarkable durable.
I call it an AK 74 but it’s actually the CAI (they call it a M74 Sporter) which appears to have a Tapco G2 trigger group. Never had one but online reviews are pretty good. Still necessary?