Has anyone tried it yet? Right now I'm running the Magpul ACS because it fits the M&P 10's buffer tube. I'd like to change though because I love the looks of the Ergo better, and I have one on a 5.56 I'd like to replace with something lighter. The Ergo F93 Pro comes with its own integrated buffertube, just like the Magpul UBR it is based on, so I am curious to know if any of you runs it with the Ergo. If you have pics that would be even better. Thanks in advance!