The boy is probably going to sell an AR and apply the funds to a Form 4 toy. Fine by me. But before he does I am considering swapping lowers. One is a Bushmaster the other an Anderson.
Both are currently attached to parts guns so I wouldn't be breaking up a complete rifle. Both are fine, good shape, fit well, equal condition to each other etc. Does the Bushy may have a little more resale value?
Would you keep one over the other, or it doesn't matter one damn bit?