The Shard ( Fantasy )
There's one major problem when it comes to bringing 40k stuff across to GURPS. All the fighting in 40k makes the stuff they use seems rather lethal in realation to the armour they use. In GURPS, lethality is rather final. Still, I have found that you can pull stuff out of the brilliantly written Ultra - Tech with out any problems and use it - with a little renaming - as 40K weaponry, no bother.