Always buy from Tom's and you will get solid mil-spec or better parts. If other company's don't say what their charging handles are made of they are probably 6061. Bought some off brand off the rack and didn't find out till I went to their website.

Got this to go with the Toolcraft Black Nitride BCG also available at Tom's. It's a high quality charging handle for a basic mil spec variant. If you don't need a fancy one, this will function perfectly.