10.3 DD with A5 system

[elpotro]

Hello,
I built a DD 10.3 with A5 system. I bought a sprinco green and my setup does not cycle with any buffer. I tried everything from A5H0 to and H3 and nothing. It’s 556 loads. I am going to get a regular rifle spring but this is a frustrating moment for me. At DD they did explain that they use a regular carbine spring with a carbine H1 buffer.
This was after the fact that I had built what I explained above... this is the first time I have an issue with the A5. I need some help.