I tried ordering this product from 3 other websites and 2 of the 3 websites put me on back order, and the last one cancelled my order because they supposedly did not sell this product anymore. I slowly started to lose hope and thought I would have to buy a new stock since my MOE stock did not have a QD mount, but thankfully I gave GBRS a shot, and was skeptical since there was only one review for this product, but I was desperate and ordered anyway, 5 days later the QD adapter arrived, everything came as stated, and fit perfectly on my Magpul Moe Stock. If you are in need of this product, I would definitely recommend you to purchase the IWC QD mount for your stock from GBRS!
My CA Featureless MP15 has an odd length buffer tube and a buttstock with no QD's. To buy an MOE stock with QD's I would also have to buy a buffer, tube, and spring. I don't mind the fact that a featureless has to have a fixed stock and the pull is perfect for me. Plus it has NEVER mis-fed. I went with this QD, and it is a perfect fit.
GBRS's service was stellar. Shipped the same day and their communication is great. A+ all around!