Hi Kevin, I have two interarms mags, identical to the banner mags but marked differently on the spine... both work fine, one is a little sticky when you depress the spring, but works great with a loading tool... They have very strong springs in them, same as the Mauser banner mags... I would sell both to you for $155.00 shipped.. let me know if you are interested, they still have the original plastic bottoms in them, bottom upgrades for both would set you back an additional $75.00... let me know, best to you, til...lat'r....GT BTW, if you're not interested, please post to that effect so someone else can take their shot at it!!