It works... - Blitzkrieg Components AR 9mm Heavy Damped Buffer

My AR9 was doubling a little bit and I experienced an OBD due to bolt bounce several years ago. This prompted me to look for ways to mitigate these issues. After combing the internet and the forums I came across many AR9 owners. One specifically by the handle of 'Blowback9'. His years of experience, research and practical applications on optimizing the AR9 lead to this purchase.
Well long story short, those who have used this buffer were right. Felt recoil was reduced, no doubling and no OBDs occurred after install and test fire. Most will say that the Blitzkrieg 2.5oz spacer should be used in tandem with this buffer, but I tested without the spacer and it still worked. But as always, err on the side of caution and run this buffer with the spacer, or purchase a heavier bolt.
Now the con. There's only one really. Since the buffer is about half an inch longer than a standard buffer then adding the thickness of the spacer, your bolt will not fully reciprocate into the buffer tube. This will not effect feeding or ejection of casings, but it will negate your last round bolt hold open feature/manual BHO lever. If this annoys you, this can be rectified by purchasing an A5 buffer tube. These tubes are a little longer than your standard carbine tube. This allows the buffer, spacer and bolt to travel further back thus allowing BHO features to work.
Yes I know all this seems like a chore, but when dealing with the AR9s it truly is a balancing act. If you want more in depth explanations and examples on how to get your AR9 optimized just use your Google-fu and look up Blowback9's website. He's also on Youtube. Good luck!!!