The Frames from Go Pro make it possible to mount your HERO4 Session to any GoPro mount. The package in includes a Standard Frame as well as a Low-Profile Frame that's optimized for helmet and ultra compact mounting. Both can be used with mounts that feature the quick-release buckle, while the Standard Frame will additionally work with mounts that use the three-prong, thumbscrew-tightened mounting system. These are the same Frames that are included with the HERO4 Session standard bundle.
The stock listed above does not take into account variances in stock levels that may occur and any items on hold.