just pulled the 10 bolt apart on the nova, in it is what I thought was a lock right. Ive got them in 2 12 bolts already. However on the one I pulled out it looks like the regular lock right but instead of the holes and relief window for the springs its got 4 holes drilled on each half at about a 30* angle where the cross pin goes. Everything else is just like the regular lockright. Can anyone tell me if I got a early version or a different make? thanks. jim