So I had something happen to me today at the range that I have never heard of and none of the people there had ever seen either.. I was double checking the zero of my AR, 5 rounds here, 3 there, but on my last 5 round sequence, I got 2 rounds off but when i went for the third, nothing, at the time I thought the gun had not cycled and jamed, so i racked the bolt open and a live round falls out, no jam what so ever, so I loaded again same thing, fire cycle but hammer was not cocked.... So I broke it open and this is what i found..... The center of the buffer had pushed out and the weights were in the bolt carrier, figured out the reason the hammer wouldn't cock back is from a piece of plastic that was between the weights had wedged the disconnect. Just was wondering if any one else has ever had this happen, I don't know the brand of buffer as it was given too me brand new, I don't thing this buffer had 100 rounds on it.... If it helps it was in a carbine...... Wanna kill these ads? We can help!