My "coupon" was only good till the fifth and I thought it was reusable till the fifth, so I went and purchased a soft case with the intent of going home and seeing if I could order the three pack online and see what the discount would be but the cashier took my coupon. I asked if it was reusable she glanced back at it and said no. My local gun shop has 15-22 magazines for $21.00 and has them in stock, so that's where I will go and get at least two more.