I think this is the best rifle Colt made.
I've one and now I want another. If you got one or know where I can get one please e-mail me.
The one I have has the sear block, I think it makes the upper and lower fit together better.

I have a Sporter Target Lower with a low Ser no,20XX. Raised mag fence but no Sear Block. I picked it up at a gun show. I also have a complete rifle with an eavn earlier ser no.Again reinforced lower with no block. It is the one I take to the range! Most Sporter Targets I have seen have the Sear Block and no bayo lug. I have several Colts with the Sear Block, and the Sporter Target is more accurate. My experience is the "Accuwedge" does add to accuracy.UncleB