It fails to feed...Always on the right side...The soft points deforms and the ball will continue to feed if I bump the operating rod. I have taken the trigger housing and pin from the carbine that works and it still fails to feed....There is sloppiness in the trigger housing/mag fit...The pin also seems sloppy..The hole more than anything may be enlarged....How that could happen, I do not know......I'm going to put this thing in a couple gallons of gas or MEK..if that does not help ,then send it somewhere, ....Charlie