It has a 3" chamber and holds 5+1 so pistol grip is legal.
If it were 7+1 or more, that would be a no-no.
They (1201FP) are available with a factory beretta pistol grip stock. The Benelli stocks, though more expensive, can fit the Beretta. The Benellis are more abundant, so this configuration is not uncommon. Free bump for a good shot gun.