I know you guys are looking for the blackest finish - and I am too, for my black rifles - but i have a current project: the "bling-o-matic", its an AR with unplated (bare) aluminum receivers so i emailed Earl at Impact Weapons and asked if I could special order an end plate - unfinished. He got back to me right away and said; that's a new one for him, but he took care if it for me and sent out an Impact Weapons rotation limited QD end plate "in the white". I also sent a similar request to Wilson Combat for a bare aluminum TRIM rail. Nick Neil at Wilson had a similar reaction (he said; I've never been asked for anything like THAT before) but he got me a bare TRIM 12 rail. So - with a stainless barrel from BCM, a stainless muzzle break from JP, a NiB BCG from R-Guns, a NiB ALG trigger group from ALG Defence (with nickle Teflon pins), I'm well into this little project. I'm actually thinking about taking the receivers to the local Harley shop and having them polished out, the steel parts I'm thinking about getting nickle plated.
Anyone know where i can get a silver metallic single point sling? (OK, I've probably gone too far with that one...)