Damn, those animations flow SO WELL. I really like that you tried to imitate Niphen/Payday animation style. I'm def. using these animations on my next build. Also if you don't mind, how did you mod the animations in? I wanna animate some weapons for payday too. Also, the AMR still has that weird mag desynchronization on your animations, seems it's tied to the weapon.
From what i'm able to understand, the AMR already has this problem in vanilla, and I was unable to fix the issue. Tried it myself by delaying the mag animation by one frame, the whole thing desynced the other way and got worse.