What type of rails on P01?

[cusco19]

i'm in search of mounting a light+laser combo onto my P01.  at first i thought i can get just get one that is universal and fit it on there, but was advised that it's best to get the one that is made for the rails on the P01.

1) is the P01 and SP01 rail the same?
2) is there a standard on picatinny rail?
3) or is the rail on the P01 a standard mil-spec 1913 accessory rail?

i'm looking into the Viridian C5L or the Crimson Trace Rail Master Pro CMR-205, but wanted to make sure they fit before buying.

thanks in advance.

[Grendel]

You already have a thread about lights. No need to start another, just post this question there.