Well by primary weapon i mean the gun that you sleep with, the one that you take every where you go, the one that if the unfortunate event happens that it has to be used will be the one that see's the action.
Modifying... hrmm i can see allot of good things about it, improving the grips to fit your hands better, adding a laser for fast targeting. All very nice upgrades that can be done. But i do hear that there is a huge negative to modifiying your primary gun, and it outweighs the positives. I was told that you should keep your main gun Stock like you got it from the manufacturer, because their have been court cases where a crook/badguy was shot with a modified weapon (new grips, different trigger, laser... etc.) and was able to get the lawfull shooter in trouble by having them classified as a "gun nut" or even calling them "obsessed with guns" for having modified his gun.
Now my question is, how valid is this? Is modifying your main weapon a good or bad idea?