I think I just used up all my Warframe luck for a few weeks

Poking around my Foundry and I see I’m 1 part away from the Braton Prime. I only need the receiver. Cool, cool. Check the wiki to find what voids contain it. I have some. But people say they’ve tried for it dozens of times with no drop. Not enough Void stuff to buff it but I have 5, I figure I’ll run one. Quick capture on Earth. Forgot to set to public instead of solo. Alright, one shot at this. Let’s go. Get the capture in short order. Crack the void, exctract.

Harrow Chassis, Braton Prime Receiver.

Well… crap. Here’s the problem. I’m MR7 and it’s MR8 locked. >.<