I have built a significant number of AR's now and have used a variety of MIdwest Industries products to do so. I have largely used the M.I. hand guards in my builds but this time also used an M.I. upper for the build. The product was excellent as I've come to expect, but was a but pricey compared to another trusted upper vendor of mine. The two products looked identical other than the t-marks but the M.I. product was about 33% more expensive. Fit and finish were also identical between the two. All in, I'd likely go forward with the lower-cost option but do not begrudge the buy of the M.I. upper as it does match their hand guard perfectly.