I was messing around with this idea the other day. I call mine the "Red Right Hand". You could switch the ER PPC and the Large Pulse Laser out for 2 regular PPCs but I prefer the build this way. The Large Pulse keeps the light mechs away. They're probably the biggest threat to your arm. XL300 because that is probably the most common XL Engine and is plenty fast in a Griffin. AMS to help mitigate damage to your right arm. Upgrade the small lasers to mediums because on anything except a light mech small lasers suck. Theme music:
Since it comes with it's own magnificent theme song, I'm going to play that Red Right Hand variant, even if I don't like it.