opinions please.
Same story here. I have the 4” barrel that came with the boltGreat setup. I have a dedicated 22lr upper, same components, runs like it should. Had it about 8 years
I decided to go ahead and get one just becasue.Only drawback if not running a dedicated 22LR upper is that the chamber of your .556 barrel will foul after running .22LR through it and you will be unable to chamber .556 until you clean the chamber....I eventually opted to build a dedicated .22LR upper.......