I've been searching on this forum for some solid suggestions for gunslingers but noticed a lot of the suggestions are either quite vague or quite OP. In my opinion the class is extremely versatile but gets limited because of either a lack of card slots which almost always translates to low damage weapons. (except for desperado) I've seen in the comments that the server is open to new items for GS but nothing is official yet so I decided to make (yet another) GS gun suggestion topic, I haven't found the below options in the suggestions yet.
The Western Outlaw for example isn't that bad but people tend to focus on ASPD while they are clearly designed to get close and personal for using desperado, upping revolvers too much might make desperado overpowered. I do think it could use a little extra because of the downside: gunslingers don't have a lot of hp...
So suggestion one is quite simple: Western Outlaw with 3 slots would be nice.
Suggestion two is related to gatling guns, basically gatling guns are designed to be slightly more powerful but not that much slower than pistols. The bonus you get with using the skills like gatling fever and last stand (although the casting time on that one is a real dealbreaker) is quite allright in terms of damage and speed but because revolvers have chain action the difference is hardly noticeable, the lack of movement and penalties make using gatlings quite useless, luckily you can cancel most attacks so it can be used in some situations. To really make them viable we either need slightly more damage or chain attack on those guns. Skill changes are not allowed on this server so here's a few suggestions below.
Add a butcher with 3 or 4 slots, there are a few cool possibilities to increase the attack speed and damage output, the only way to use a gatling is by using basic attacks for short burst of high damage (and losing movement I might add) it could be paired with a sidewinder card that has a 5% chance of double attack which could be a nice addition (I'd have to try it out though.) but the 4 slots are helpful to increase it's damage.
Add a new gatling gun that has 0 or a max of 1 slot and an attack of 90 with an added bonus of triggering chain action (level X, I'd have to test it out too see the damage output)
To say the least: I'm not very experienced with other classes, so I have no idea if this will "close the gab" but at least it opens up a few new possibilities. Obviously the gunslinger class was created with gunswitching in mind, except for pairing revolvers with shotguns, the gatling gun is quite a "forgotten" item and it's sad because it's kind of cool having bursts of high damage using the two available buffs that have a big trade-off. Right now the trade-off is too high and the damage output is underwhelming.
If needed I can use the calculator to find out how it stacks against other classes.