Just got my 11" in yesterday and couldn't be happier! Put it on a 10.5" bbl and it is perfect. These are uber-lightweight as they contain the front sight, built-in. And it's spring loaded so you push the button and it opens. Best rail for my purposes. Actually made money selling the old rails/front Troy sights, and it's very light.
Check it! (bigsupplyshop.com had them in stock so I paid a few extra bucks than what AIM has them for) http://www.aimsurplus.com/product.as...tle+Rail+Black