Rob,
I have an Elite also, and that one feature of the quick bolt release is worth every penny. I may send my original disc in for the same.
I bought this bolt (just the bolt in a conversion kit box) in a sale at my local gun shop...no plug, screw or red disc...it was stuck, I could not remove the firing pin from the bolt...so I sent it off to Knight with a letter explaining everything. Got it back today, no charge. I assumed I would be getting a new firing pin assembly for my bolt, but they just removed the firing pin assembly and put it back together. Compared this bolt to my orange disc bolt, same but for the cut out for the bolt release, which is the same as on my red disc bolt.
Tonight I will remove the orange disc plug and use my red disc plug to see if it works.
Bulldog...