I took my rifle and BAL to my local gun smith today. Turns out the BAL lever interferes with the bolt catch on a colt receiver too. That is, the lever arm hits the receiver before the bolt catch moves all the way up.
Okay, so as is, it does not appear that the particular unit will work on any receivers. That means I have not a lot to loose in bending it, in the event I break it. So grab a couple of pairs of pliers and my propane torch and let rip.
First I bent the arm above the "elbow" to get it to clear the receiver. Mount it and check. I cannot get the arm to touch now, but the part of the lever that goes through the trigger now has a distinct downward angle. I actually think I over did the first bend but I don't want to go back and re-bend it, I am concerned that it will work harden and break.
Anyway, next I heat the pieced again and bend the lever so it is about 90 degrees to the receiver wall. Opps, a little too much heat (the anodizing is missing on the bottom of the lever now. But, the arm is functional and does not impede travel of the bolt catch. With the mag inserted, the bolt catch extends up to cover the full height of the bolt lugs. Next will be live fire function testing. Likely next weekend.
Assuming this works now, I have a functioning BAL lever and there appears to be nothing with my Norc receiver that caused it to fail. Not bad for used kit off of EE. My only other concern will be of the lever being bent away from the receiver will cause it to snag on my chest rig more so than if I had been a little less aggressive with the first bend.
Crossing fingers.