So.. is the A2 buffer like an H2 or H3? Is it just called a rifle buffer?

I have a 16 inch upper and an A2 stock, haven't had a chance to try the "seeing the hits in the scope" thing yet, but it throws my brass about 4:00 o'clock and works everytime so I guess I don't need to change anything.

OK, I went back and found the diagram, so the A1/A2 is the heaviest? I just need to make sure it locks back on any .223 stuff I shoot or lighter handloads.

Lots of good info in there, just had to pay attention.

Thanks much