Everyone posting so far seems to think that a BT-99 is a beginner's shotgun. Nothing could be further from the truth. Many accomplished trapshooters shoot a BT-99 for singles trap and handicap. They only go to a O/U for doubles.
want to purchase an older model bt-99, gun is clean, lockup is tight, but lever is in center position should I be concerned.
it means you should replae the locking bolt, about 150 bucks. that makes the gun new again. It should be to the right. Jack