Just acquired a Walther PDP F series with the 3.5 inch barrel. This is my first pistol with a rail, a short one at that.

Wondering which weapon lights will fit the 2 slot rail and curious as to what others run on this particula model.

Thanks.

I cannot speak to the specific Walther but the Streamlight TLR7-A nestles in extremely nicely on short rails and is a great light with lots of aftermarket support. The TLR-Sub if you need smaller.

Is there a possibility you'll have to beat someone over the head with it?

If so, Surefire.
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TLR-8A