Wanaxit-- I see three issues in your picture. first The selector switch is not locked into either a FA or semi-auto position. This will effect the alignment of the selector switch with the sear on the trigger. Second the triggerguard is not fully extended in an open position. The hammer should be in a cocked position. Third the triggerguard assembly is not properly aligned with the triggerguard assembly track in the rear of the receiver. You will never get it in in that position. If it is a new stock that is being installed, it may have to be fitted.