Tactical Light Holder FAS2 Tactical Light Holder Product Code: FAS2 FAS2 Assists the operator to identify threats in low-light conditions or darkness. Permits operator to hold the weapon with two hands while still having ready access to an illumination source. FAS2 fits SureFire 6P, 9P and other 1" flashlights, but will accommodate other lights of similar barrel dimensions. Push button mounting and adjustment.