I recently got my P9S barrel back from Mark at TROS. He threaded the barrel and added an extension, so I could run the gun suppressed.
I usually run the gun with a Trident-9, as I can see the sights over this can. But this pistol gives me the ability to run any size suppressor. I was favorably impressed at the level of suppression of the CAC-45 next to the Trident.
I was shooting a subgun match on this morning using the can on an M11/9, and you can see I still had the heat cover on the can. Of course, the pistol didn't care about a little more weight.
Video at
Suppressed H&K P9S - YouTube
I usually run the gun with a Trident-9, as I can see the sights over this can. But this pistol gives me the ability to run any size suppressor. I was favorably impressed at the level of suppression of the CAC-45 next to the Trident.
I was shooting a subgun match on this morning using the can on an M11/9, and you can see I still had the heat cover on the can. Of course, the pistol didn't care about a little more weight.

Video at
Suppressed H&K P9S - YouTube