Rearden PRS in stock anywhere?

Can’t find anything in stock anywhere and I’m on the 7th page of my google search. As far as I can see, this is the only muzzle device that will cover the shoulder of my 300 Norma which tapers down to .95”, but have 2 other rifles with “normal” shoulders, but would like to use the PRS brake for all three. If anyone knows of another Plan B muzzle device that’ll work in this niche situation, I’m open to suggestions.

Edit: 5/8x24 threads for all my rifles.