What I'm looking for locks the bolt back after the last shot, like you see in an AR or a lot of other modern semi-auto rifles. I already got a bolt release like the one pictured there to release the locked bolt with one hand.

I talked to the guy who runs Hawken Tech and he said the part he sells needs a modified mag to work, but will still cycle and feed from factory mags, just without locking after the last shot (like it comes out of the box). He also told me how to mod factory mags to work properly. The part and one mag cost a little over $50, so I'm still thinking about it. The 10/22 is great out of the box, but...I hate pulling the trigger and hearing nothing but a click.