Want to get some input for a side rail mount.

I have this Century Arms RAS47 (RI2405-N) with the new century arms proprietary side scope rail mount.
https://www.centuryarms.com/ras47-zhukov.html

In my research I have found these three options that I think should work with the gun I have. I would love any input form anyone who used any of them. How you like them. What you didn't like. etc

1) RS Regulate
AK-309M Century Proprietary $130
AKR 1913 Railed $80
Total: $210 ish

2) Midwest Industries
MI-C39SM-R $150

3) Century Arms
Red Army Standard AK Micro Dot Side Mount $85

RS Regulate, best side mount option available, high quality, bulletproof design not readily apparent unless you've tried the competition's products. They are worth the price, buy once cry once.

I have a C39v2. I got AKOU Goat Fucker Anhialator combo. It came with the RS mount. EXCELLENT mount. Buy once and rejoice!

RS Regulate