Are Ported Barrels Available for the M&P 9mm?

[Tango2]

As the subject asks, Are there ported barrels available?

I watched a video about a M&P and it had an extended threaded barrel which I thought was cool and would be nice to have, and a co-worker has an extended barrel on his glock 22 that is ported and it shot really well.

So thus I am looking at getting an extended ported barrel for my gun. Just can't find any at the moment.

I found a conversion .40 to 9mm but no just 9mm.

 

[bjhill]

Storm Lake barrels check there web site

 

[Tango2]

Ah I found the Real Storm Lake website.

Here's another question, I just bought some CCI Blazer Brass ammo, (500 rounds) and it says on the Box, not to use with Ported or compensated barrels.

Any idea why?