Providing the modder did her/his job properly they should be automatically included by the Grun perk. The perk, as I read it, modifies according to the gun or explosive skill, not the weapon. At least in the Perk tab it refers to gun and explosive, as opposed to any weapon or even weapon category as in 'Small gums'.
[QUOTE=Darth Gavinius;1096098]Distrbution of games, is becoming a little like Democracy (all about money and control) - in the end choice is an illusion and you have to choose your lesser evil.
And everything is hidden in the fine print.[/QUOTE]