In my opinion, this is the best 10/22 receiver out there. It improves on many of Ruger's shortcomings. Milled from billet 6061-T6 aluminum and features a built in 15 MOA scope rail, rear cleaning port allows cleaning without barrel removal, dual guide rod system for smooth cycling, noise dampening bolt buffer, ant fouling stainless steel bolt, and ambidextrous charging handle. The item is anodized OD Green and there are a few spots on the lower prongs where the anodizing rubbed off from installation on the chassis I was using.