I'm not sure if this has been covered but I just got an email that my S15 version 1 magazines just shipped that I had back ordered! They just released the S15 Gen2 version limited time jump on it if you are considering it limited to only 2 magazines!! We saw what happened with the last Shied arms magazines I saw them for upward of $70-100 per magazine even if you decide you don't like it sell them! I'm not sure if someone else covered this already if so my apologies!