I do... Did it to save a bit of weight and have one less component with corrosion issues to worry about... that being said it's still a chunk of change that really doesn't offer much enhanced functionality. Top notch machining and finishing though.
Weird -
Check out the thread below yours, "Benelli M4 - Building a H2O". On page 2 (about half way down) there is a discussion about Wright Armory now being the go-to folks for NP3/NP3+. I'm sure Stranger can provide some insight on their service and prices.
Check out their website https://wrightarmory.com/
You done yet? Even to someone on the spectrum you should be able to tell that no one values your opinion.
We have missed your daily autistic rants though.