If you want to buy a KR1AA, Hank has it in stock now.
In the past Jackson had a different version, that we call V1. It had no physical lockout.
We wont know until Jackson receives the shipment.
In the past Jackson exclusively had a version we call V1, with NoPhysical Lockout, Hank’s version, which we call V2, has YesPhysical Lockout.
The clip does not spin anymore, Hank added a second O ring to prevent that (some call it V2.5). All Hanks current stock has YesPhysical Lockout, and the clip does not spin.
A couple of people had concerns that the buttons have too light an activation pressure or too much pretravel. And that the button must be pressed in the center, not just on the edge..
I dont share those concerns. The button works fine for me, without modification.
Here is a more extensive rundown on the perceived concerns about the KR1AA design. Personally, all the issues are solvable or not a concern. Im extremely happy with my KR1AA lights..