5
1730
7
1249
https://www.msrdistribution.com/magazines-rifles?specs=category%3aca+compliant%21%210%21%21%7c%7ccategory%3amagazines%21%2120%21%21%7c%7cmanufacturer%3apolymaggs%21%21580%21%21%7c%7cmanufacturer%3akci+usa%21%21450%21%21&stock=include_out_of_stock_products