Looking good!
Gotta say that stainless allen heads rock! 3 ways to go about them. Right out of the box (big improvement) , tumbled in a tumbler to give them medium shine (even better with the black) or smoothed off and polished to a chrome like shine (FN killer! It'll make that black really pop) When I polished mine some were already smooth and some had the little ridges and/or markings on the top. I put each one in my hand held drill and turned them against the grinding wheel on my bench top grinder &/or against a sheet of sand paper, etc. MUCH easier and safer using the drill method and it gives a consistent roundness. Then I did the same thing with my drill against the polishing wheel.