I'm not interested in attaching lights, lasers, etc. so rail aren't needed. I'd just like a free float tube for my M&P10. Being a tight wad, I'd rather keep the factory gas block. It seems the DPMS brand tubes are either carbine length or rifle length. I was thinking the carbine tube might look a bit odd, so would rather have something in the 9" size. Does anyone make what I'm looking for without buying the rifle length tube and cutting it down?