One of them is the new version. They are interchangeable. The gas screw/jet size is what's important. I still have the old style regulator in my 10" SBR.
I was going to buy the new one and change it out because I'm anal like that. Then I figured it wasn't worth the $48. I think, they used to be in the high $20 range,
I was going to buy the new one and change it out because I'm anal like that. Then I figured it wasn't worth the $48. I think, they used to be in the high $20 range,
