This was a proof of concepted. Up until this time my lowers always failed about halfway up the buffer tower. I wanted to move this failure point to the neck which has a much larger cross section. Which would make the lower much stronger. I had become aware of the U-Bolt Vanguard lower by this time and the U-bolt was the inspiration for the hose clamp. The U-Bolt was not a good option for my lowers as it did not take advantage of the support rib, so after much thinking I stuck upon the hose clamp which clamps the entire buffer tower, not just the bottom half.