Actually, just so I've actually made some sort of input to the discussion (instead of just whinging) how would people think of a modified "High Power" weapon? As has been suggested it could perhaps be modded to 3/4 ammo capacity instead of half. But why not let it be put on shotguns? (with no ammo capacity limitations). With the effect of either +1 die of damage (9d3 single, 9d3x3 double, 8d3 combat) or quicker reload for single/double or more ammo capacity for combats. Then 3/4 the ammo capacity (minimum of one) and let them use "bullet damage" instead of "shrapnel damage".
It'd make a good basic assembly, that just about everyone would want at some time or rather, shotty user, pistols or chaingun/plasma gun. It might be a little over-powered, but some testing would tell. It also allows the "High Powered Weapon" assembly become an excellent jack-of-all-trades assembly, rather than the "nerf my weapon" assembly it is now.
For the "guaranteed-ness" of the assembly, it'd only be "definitely" available from the mortuary onward. Which is about the the time shotguns start becoming iffy to use as weapons for non-AotD builds. Shotguns are great up to that point, after that their use can start tapering off compared to other weapons (probably earlier really). You can get lucky and get it early, or drop into the Mortuary, phase, grab your mod and get the hell out of there. And then be able to shotty your way through end-game even without AotD or fireangel builds. Sounds good to me.
I'll stat it up in the "Request for Features" forum.