No worries. I just hate relying on the internet and figured I’d offer since the reviews are all over the map. If you’re talking about KD Gunwerkz he’s good to go. I wanted his three stage shorter stroke buffer, but he just bumped the price to $125 with no refunds. I’m happy with the $28 delrin HBI buffer for now, and I am not sure his buffer will play well with the 40 degree locking block.Thanks for the offer but you're 1-1/2 hrs from me. Im in VA too but down in King George. I just found a guy who 3d prints magwell adapters to fit Colt mags for the Stribog. That might be the deal sealer considering i already have about 20 mags already for my ar9. On the other hand, the ap5-p is pretty damn sweet.