I have a FF3 on a Charger that is an absolute hoot to shoot. But, if in rain for long the emitter can get covered with water... same as any reflex sight of this style. Tube-type have the emitter inside a tube. Burris does include a snap-on cover for the FF though.
Advantages and disadvantages to this style vs. a tube type reflex. The only tube-type I've owned were T1 and H1 Aimpoints.
