AR Adapter

[HawkMan]

I want to get a 9mm adapter for my AR and noticed that the Hahn Precision adapters say, "FOR COLT/RRA 9MM UPPER RECEIVERS ONLY."

Would the Hahn Precision adapters work with a Kaw Valley Precision upper receiver?
What's the difference between a Colt/RRA upper and a Kaw Valley Precision upper?

[Strykeback]

Whether they take glock mags or colt mags I imagine. Some have last round bolt hold open as well.

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[HawkMan]

Whether they take glock mags or colt mags I imagine. Some have last round bolt hold open as well.

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Do you know if the Hahn Precision adapters accept Glock magazines and if they work with Kaw Valley Precision uppers?

[someoneeasy]

The Hahn adapter us for colt mags. I'm sure if you want glock mags, you're going to need a dedicated glock lower

Either lower/adapter should work for the upper. I think the only difference will be the bolt and how it's cut/ramped.

[Joezamboni]

I use a Hahn with a Palmetto state upper that uses their hybrid BCG. From what I understand that BCG supports both colt and glock magazines.