Interested in buying a CVA ML. However I'm not sure what exactly the differences are between the few different models I keep seeing other than price and quality of the iron sights. On the bottom rung there is the Wolf and then there a a few models (Optima, Optima Elite, CVA 209, etc.) that look exactly the same from there steadily raising in cost. All I'm looking for is a rugged, simple, reliable, and accurate ML, not the fanciest, latest, or greatest. Thanks in advance.