The wait might have been long but I think this will be worth it. It was either back-ordered or the person who was SUPPOSED to pick up my mail, missed it. I had a bad experience with a bayonet type SKS muzzle brake once (AK-74 style). So far, I'm impressed with the build quality for the price and the brass set screws are nice so their is no permanent alteration to your 91/30. Just a quick test fit for now. Hoping to get it on the bench at the end of the month and answer the question, "Does it work as well as they claim?"