Picking the Best Castle Nut for AR Buffer Tube
Getting the right castle nut for AR buffer tube setups is one of those small details that can actually make or break your build's reliability. It's a tiny, circular piece of hardware that most people don't think twice about until their stock starts wobbling or, worse, the whole buffer assembly starts backing out at the range. If you've ever felt that slight "give" in your shoulder stock during a string of fire, you know exactly why this little nut is way more important than its size suggests. ...