Not what i had hoped for - XTS Rifle Sling Adaptor SP4046

I have an MS4 dual QD sling and was hoping this would work as a less expensive option to install an attachment point than others I saw (Midwest Industries/Daniel Defense) for an option without having to remove the castle nut and end plate. It looks almost identical to the MI option and simple enough that what could be wrong? The push button sling adapter was difficult to insert and remove in the QD cup. The MS4 dual QD was even more difficult to insert and remove. Not quick to detach. I decided to remove it and send it back for a refund. After removing it from the buffer tube, I noticed it had deformed some threads on the buffer tube. I don't know if this style of adapter, weather it is an XTS or MI would have the same issue with the threads.

I gave it 2 stars, because it would work, sort of as intended, with the supplied QD sling adapter and the thread issue may just be common to this style adapter.