Beran wrote:http://www.airsoftgi.com/product_info.php?products_id=4440
anything else is going to be a cheap-ass deal that's held on with set screws and will fall off. the barrel is $36, a suppressor is maybe another $40.
seriously, don't get the cheap universal $20 suppressors. they look retarded, they don't fit well, and they don't stay on the gun. you already paid over $150 for the pistol, don't skimp on the parts. its a dis-service to the replica.
That barrel won't work: "Please note: It will not work with KWA PTP series."
As far as I know, there are no other threaded outer barrels for the m9 ptp. A suppressor would just weigh down the slide and add unneeded weight on the rails anyways.