I've been emailing the seller and regret to say these will be A2 profile lowers, not A1.
There's some confusion because he posted photos of an earlier lower he made and it looks great! A1 profile, right color, Colt rollmark...I had to check for a sear pin hole to make sure it wasn't real.
When we spoke, though, he mentioned the A2 profile so I had to ask for clarification.
He said he was sure he posted that in the thread but the post isn't there so now he's going to have to go back and check with everyone who signed up for these.
Sounds like a really good guy--he wanted to do something for me like a free custom serial number for pointing out the confusion, but I told him the A2 profile is a dealbreaker to me.
He did say, "I plan on doing the a1 style, I just don't have the proper tooling at this time unfortunately."
I've asked him to keep me posted, because if he sells A1 80%-ers that look as good as the one he showed in the pics, I'm in!
He did say he could accept orders for this group buy till the 25th. If you're interested in an 80% A2 lower that is engraved and anodized gray (they'll probably look good if you don't mind the reinforcements), sign up at that forum...or contact me and I'll give you his email address.
ETA: Oh, I also invited him to stop by here and visit!