Armorers Wrench(s) 🔧 | You May Need More Than One
For those of you who have one of these type of styles of armorers wrench, these 2 are the ones I would recommend considering ease of use, how robust it is.
Magpul Armorers wrench is very strong, yet very expensive. I love the straightness of it without any funky angles and it could do just about anything you need it to. I also really appreciate the torque specs of the parts engraved on it as well.
Truglo wrench can do your castle nut without having to go over the buffer tube and it obviously has the 3 hole barrel nut adapter. Seems to align perfectly for my needs and has two torque wrench adapters built in.