I am in the process of getting my SBR barrel threaded to put a suppressor on it. It’s a Bushy AR, 7.5 inch, .223 1:9 twist barrel and on another post someone said that I should be careful about putting a suppressor on such a short barrel. And something about short barrels do not stabilize the bullet and that you can get a baffle strike. I was surprised to hear this directly relating to the length of the barrel not the twist to bullet weight.

What is the story? Is this true? Am I out of luck with putting a suppressor on my gun? It is too damn loud without a suppressor.

Most suppressor makers warranty their cans to 11.5 inch barrels or more. The shorter the barrel, the less stable the bullet and the more likely a baffle strike is. The shortest suppressed barrel (that works) that I know of is a POF 9.25" barrel with a can made and warrantied for use on their rifle.

KFH?

Doesn't anyone make an UZI like suppressor for the .223.  What I mean is that the UZI suppressors i've seen have a larger bore closer to the muzzle end of the suppressor because of the tumbling that 9mm does when it heats up at full auto.