Adjustable beams, known colloquially as “zoomies” usually aren’t recommended because they tend to lose a lot of light in the aspheric lens they use, they tend to be more fragile, and they are hard to waterproof.
Not sure which Streamlight ProTac you’re referencing, but this light has a fairly balanced beam:
There are throwier lights available in the form factor but few if any will have magnetic tail caps or side flood lights
Check this post for a discount code if you’re buying: Archive topic - Banggood & Fin17