The most optimal in terms of saving coins if you don ' t care about ending is do jobs till your child is stressed then do the fishing vacation once . Just repeat that . Additional coins from playing optimal level dungeons . <| sep |> Only when I ' ve finished vs <| sep |> Here ' s a to soothe your pain . <| sep |> New player it seems . Check YouTube next time , if you have access to that . People running that build left and right <| sep |> The MK 2 hasA flat triggerNew Better , imo gripbillet style recieverblack metal flash hider Not installed , for legal reasons . comes in the boxSmall rail segment Not installed , comes in the boxI think it ' s totally worth the extra money . The rail segment and flash hider alone are about $ 30 , the flat trigger is nice , and the new grip is very comfy . I don ' t care much about the billet style receiver , but it ' s nice . If you need any other questions about the Krytac answered , feel free to ask . I actually have my Mk 2 CRB in my lap right now