First I would like to start by saying that I shoot AR pistols just as well with or without a brace, standing with no rest. I prefer no brace as I like the minimal bulk and cleaner lines. I started a project of turning a Ruger 22/25. Frankenruger into a SBR and just stopped short of what I can do legally without a stamp . So my question is, can I build a cheek weld that protrudes out the back of a pistol from 1/4” rod that would run down one side of the gun and loop around just short of the length of a buffer tube and head back north to the other side of the gun and not have any use besides being a cheek weld point and not be listed as a SBR? I would think if it fell within Mares Leg LOP it would be okay.