Not a true drop in - Ed Brown Products SR Threaded Barrel for M&P

Another review on this has the same issue- google search shows others with this same exact problem. I have the M&P 2.0 Metal and this barrel is not a true drop in. After installing this barrel, I had failure to fire malfunction on 40-50% of my rounds. The primer strikes are lite seem to be off center. This is my carry gun and I can imagine actually needing it and it just goes "click." Maybe it works in the polymer 2.0, but stay away from this if you have the metal frame. I reached out to Ed Brown just before posting this review to ask the wtf. If I can edit the review I will update with their answer.