So, do you all ever plan on doing a complete 7.5" upper, or maybe 10.5"? Or am I just not seeing it on your website?
I pieced together an AR pistol with a 7 1/2 inch barrel about a year ago. I spoke to a call-taker for the store and asked where the barrel came from. After a minute or two they came back and said they got it from Del Ton. You can get an upper here at JSE. JSE
has a number of uppers available at different pricing. All you've got to do for the SBR is find your NFA dealer for the paperwork.
Maybe if enough interest was shown DTI would put the 7" on the retail store.