Hi, I have a Knight's Armament M4QD suppressor in very good plus condition. It recently came back from Knights for a checkup. It comes with the flashhider/mount, original box, and peal washer kit. (Weight 22oz, Length-6.6 inches, 1.5 inch diameter) I am wanting to trade it for a HK Tactical pistol and mags. The suppressor is on a form 4 in TN. Please email me with your offer.