Hello Friends! My Thanksgiving haul just arrived from Edgun shop. I bought a .177 barrel kit with 2 mags. I requested they provide 1 pellet and 1 slug mag and mark which is which. I received 2 mags but there’s no indication as to which is which. Is there any simple way to determine this? I already dropped ZAN slugs in to see if they were caught vs slide through on both but they returned similar results. See attached pic. Thank you in advance!!