Originally Posted By Z06pilot:
so which one should I get for a midlength H, H2, or H3 ? mine does not have any markings, so I would assume it is not of the H type. Doesn't colt use an H type?
My Colt 6920 came with an H buffer, and so did the complete Colt lower that I bought.
I also have an H buffer in a 16" middy and it cycles fine.