Airsoft for familiarization or marksmanship, manipulation, safety rules, etc. for a while. Then... HK33:
Well, it varied. A couple chose that, not sure why, but I gave them the choice of the arms room. Many were just happy to play with the NODs, wear armor, etc.
This one went for the shiny 5946 as first live shot:
Yeah, the pre-work on airsoft even got her a good overhand grip.
She'd seen it before. It's a good couple years when the kids are fascinated enough by the guns you can get them to do menial tasks like loading, cleaning
(We fostered. Did first shots for probably a dozen kids. I'll note that the state, agency, workers, etc DNGAF. As long as remotely safe and we locked them up at home, no problem.)