Tony Vargas
Legend
Depends on how available they are, of course... and, on how important armor is. Since 3e, heavy armor isn't the be-all & end-all of AC it was in the classic game.I wouldn't do this unless I wanted to underscore a major campaign theme to the effect that the new ways are destroying the old ways or whatever.
Not at all, just have the target make a DEX save - only difference between that an 'attacking REF' is who rolls the die. Make the DC based wholly or primarily on the gun, itself, rather than the guy touching it off, and you really drive home the 'little training required' thing.Especially in 5E, where there's no touch AC or Reflex defense, you would have to write a special rule to describe how guns are armor-piercing.
More than just commoners defeating armor, at that point, you could have a campaign where new (high DC) guns are turning the balance of power against high-level adventurers and the like. Especially if magic (like Shield & Mage Armor &c) doesn't work terribly well against them, either. A world on the cusp of modernization, at the tipping point where it will cease to be a fantasy setting, at all - but maybe the PCs actions can stop it (or abet it).
Hmm.... another campaign idea I may never get around to using.

Which does kind of defeat the purpose of introducing them in the first place. Though, in that case, it's simple enough to just use crossbow stats for them and be done with it - you get the flavor, a less bulky, effective enough ranged weapon that's easy to use, and don't mess with anything otherwise.And considering that historical early guns weren't that good at piercing armor, we've got more than ample justification for keeping it simple and using the standard AC rules in any campaign where you don't want to make a big thing about it.
Yep, that works fine.I haven't used guns in 5E yet, but in 4E I balanced them as an effective "encounter power": they take over a minute to reload, so you're basically going to fire your gun once per fight and then get on with your other weapons.