Things I liked:Strong and very well built. Has not shifted after about 400 shots. Is too high for a 40mm scope. Things I would have changed:Nothing. What others should know:Get low rings for 40mm or smaller scope diameter.
Things I liked:Well built and very strong, has not shifted. Things I would have changed:This adapter sits very high, a lower profile would be nice. What others should know:Get low profile rings to go with this adapter.