Get the Smith Enterprise from Dillon(they have it the cheapest I've found) or anywhere else that you can find them cheaper. They are a great mount and still alow you to use the iron sights. Some advice when you are looking for one. There are very cheap ones on the market but don't fall for it. They loosen up every other shot. Get the Smith. It runs about $149 and won't loosen up. It is also lower so you might not even need a cheek pad on the stock depending on your body build. The Smith is also much better than the Springfield Armory 3rd Generation. Good luck.