Armaspec Self-Retention "No Stake" Castle Nut and QD End Plate

I struggled between giving this a 2 or 3 start rating and ultimately decided it was "middle of road" at best. As the other reviewer of this product stated, I too really wanted to like this castle nut for the colors offered the functionality it claims to provided. As noted in the other review, threading the castle nut onto the buffer tube was a chore to say the least. Several times in the process it felt as if I'd cross threaded the nut onto the tube. This resulted in multiple iterations of threading on a bit and then off etc., to "season" the threads, being careful to not cross thread it. The use of tools and some moly grease on the threads helped to eventual get the home. My take away is that the thread pitch on the nut wasn't 100 percent compatible with the buffer tube {UTG Pro Mil Spec tube). At the end of the day, I was able to complete the build with out excessive amounts of frustration or marring of the firearm (it didn't come out completely unscathed). Perhaps this an intension design feature, specifically it's so hard to get on it will never come off kind of thing. Is that is truly the case, some documentation explaining as much would have been nice.

In terms of functionally and living up to its "no stake" claim, its too soon to tell as I've only put ~ 50 rounds down range with the rifle. Knowing what I know now about it, would I buy again, probably not. Hope this helps.

I can say that I will continue to by from AT3 Tactical as they are awesome in terms of selection, availability, and price.

I wanted to like this Castle Nut. It looks clean, there are color choices, the endplate is solidly built, and the set screw access to the takedown detent is a positive. That said, I had real difficulty getting it threaded onto my buffer tube, extremely stiff one thread in, which is supposedly normal, so I used my castle nut wrench to screw it on for assembly which caused some scuffing before it was far enough in. Once the tube was set into the receiver I again used my castle wrench to torque the nut into place. In the process it was so stiff that the torque notches ripped out before getting to final torque.
I have another one waiting for a different build that I tried just to see if it was one-off issue but this appears to be how the nut works. I tried the same with both a Strike Industries enhanced buffer tube and an Aero Precision enhanced buffer tube, same stiffness issues. Maybe a basic milspec buffer would work differently but I don't have one available.