5
1730
7
1249
https://www.msrdistribution.com/magazines-rifles?specs=manufacturer%3aokay+industries%2c+inc.%21%21510%21%21%7c%7cmanufacturer%3athril+usa%21%21730%21%21%7c%7cmanufacturer%3akci+usa%21%21450%21%21%7c%7cmanufacturer%3apolymaggs%21%21580%21%21&viewmode=grid