Ringer- Any chance of you posting up detailed pics of your promag?I just picked up a promag bipod last week for my new (to me) V93. I got a chance to bring it out over the weekend and I had no problems at all. It too has the phosphate finish which looks pretty darn close to the finish on the rear sight/flash hider. I haven't noticed any trouble with the legs not locking either. I just spent the last five minutes pushing down on them while they were locked down and pushing forward on the rifle when I was laying prone and it seemed nice and strong. They stay put pretty well when folded up too. Hard to beat for $60
It would probably be a different story if I had a true HK91/93 but thats a different story.