A few years back, Olympic Arms was making a 9mm that used a drop-in magazine block that used Glock magazines. I'm interested in buying the block, or the both the upper and block if you can't seperate them.
I'm not interested in the sten adapters or any other uppers, just the Glock fed type. Let me know what you have and how much, pics if possible, Thanks.
Picture of what I'm looking for.