That being said, there were many times I was trying to adjust my dope and thought about getting one. It is absolutely not needed, but would made adjustment a tiny bit easier, especially if you have to make a very bold adjustment.
ordered one. the reason i asked initially cause i tried to order one from Sportsmans Guide and it was restricted because it is for an assault weapon. I called and complained to no avail. So, a grip i have been waiting for to come in stock finally did at Brownells and i ordered a tool from them.