Brownells is working with an A1 forging also, It can be quite common understanding that they are employing forgings produced by Nodak Spud. Undecided where you are getting your assumptions from. Sad to say, I'm on vacation so I am unable to write-up photographs on the bolt. It's MPC engraved. https://emiliobeccz.wiki-jp.com/1077466/colt_python_6_for_sale_for_dummies