It looks more like a 21a magazine to me
https://www.beretta.com/en-us/product/beretta-21a-bobcat-magazine--22lr-7-rounds-PR0132
Edit, I think I’m wrong. I don’t see a magazine catch at all
https://www.beretta.com/en-us/product/beretta-21a-bobcat-magazine--22lr-7-rounds-PR0132
Edit, I think I’m wrong. I don’t see a magazine catch at all
