I'm in the middle of putting a 7 SUAM together, and have ran into a problem. I have the barrel, trigger, and the center feed 4.4" short action. I have chosen to go with the Bell and Carlson Savage Varmint/Tactical stock. My problem is finding the parts for the magazine. I'm wanting to run a blind magazine setup. I've found the part numbers I believe, but I don't know where to get them.

Magazine Box
https://www.midwayusa.com/product/58...gnum-rsum-blue

Follower Assembly
https://www.midwayusa.com/product/31...ra-magnum-rsum

Midway shows them, but they have no idea when they'll be back in stock. Can someone please help me out? Thanks so much for your time.