Have a 300 BO that I built years ago using a Troy 10.5” upper on a Spike’s Tactical lower that’s been languishing in my safe for years. Recently decided to modernize it using a Maxim Defense 8.5” upper and CQB stock. Took it out yesterday and it ran flawlessly with both subs and supers. Used it with both the Explorr 300 and Nomad-30. No gas to the face with either, but decided to stick with the Explorr because the Nomad didn’t sound any better and was heavier. I think I’ll keep it.

That is cool! Now I need one.

Very nice, I really dig 300Blk AR’s .. especially short ones!

That is a great modernization job you did. Nice looking blaster.

Love the Maxim stock. It's soooo short when folded; I really like the one I have. It's perfect for an SBR.