The Yankee Hill 3300 Phantom QD suppressor can be installed on several calibers and thread sizes with the Flash Hider Adapter. Here I use the 1/2 by 28 adapter to use the .308 Can on a .17 HMR rifle, a .17 Mach II, and especially on the .223 (bolt, AR, or AK style).
I purchased my Yankee Hill suppressor from:
http://www.SilencerShop.com Tell them BigKid from ArchersFriend sent ya.
I had my barrels threaded at:
http://shumakergunworks.com Stephenvill, Texas
Tell Michael, BigKid from ArchersFriend sent ya.
My Video Review on the 1/2 X 28 Threaded Adapter for the YH 3300 QD .308 Suppressor.