Arsenal's AK-104 clone: SLR-107CR

Thanks for the tip on AK USA.

Does anyone have muzzle velocity data on 5.45, 5.56, and 7.62 Krinks?

I’m having a 5.45 Krinkov made by MATR/BHI, but I’m wondering how much muzzle velocity is lost on 5.56 and 7.62 with an 8" barrel. I’ve heard about too many problems on the 5.56 AKs that I’ll probably stick with 5.45 and 7.62x39.