I'm posting this for my brother. This is a Stoeger Condor O/U 12ga. 3" chamber. I believe the choke in the bottom is a improved. I know the one in the top is a "Trulock" Full, .700 Hevi-Shot Approved. There is a third choke, I believe to be a "modified" Unknown round count (was used for trap shooting) $300.00, offers welcome Sorry, no trades on this one.