Between her two modes AND a passive that helps keep shotguns alive, I don't think there's much more to say other than "she's great, you will probably find a use for her."

Comparable to the Browning Potato Digger. There must be something about early model machine guns. Her skill gives her an extra long belt that activates three seconds in, and unlike Potato Digger, who sacrifices accuracy and gains firepower, she instead sacrifices reload time while gaining accuracy. While the extra reload time is a pain, she does buff other dolls while reloading instead of being useless. The accuracy boost is nice, but not a game-changer. It may help vs. enemies with a moderate amount of evasion though, given typical MG accuracy is kind of mediocre.

Why does she have Shark teeth? Dammit Imoookoooo

Despite the teeth, she's somehow the nice HK girl. And somehow, she's the smart one. Look, HK is weird ok?

Anyway, she packs as much as 84% damage increase with her skill going at full power, but you're more likely to get a 76% boost in a typical RF/HG formation. Still, she's not bad. In practice she's slightly worse than R93 in most cases, but not usually enough to matter.

Note her buff tiles are funny and affect everything, so this makes her secondary ability a little easier to use. That said, she does NOT give HGs the usual cooldown boost most other RFs do.

If you want to stack armor, she's one of the best for it, with one of the highest base armor among shotguns. That combined with her skill, she can easily hit some insane armor thresholds, making her take 1 damage (zero with flash rounds) where other shotguns can struggle. This does come at a price of having her HP be on the lower end of shotguns.

However, there are now plenty of other options at this point in the game that can produce similar, but better results. That doesn't make her trash, but yeah. Still usable.

CAPTAIN CHINNNAAAAA! Surprisingly good for a free unit. Has the lowest armor among the shotguns (tied with Super Shorty), but she will get you started considering how easy it is to get her. Aura optimized for 1SG/1HG/3MG setups, and works well with Mk23 and M2HB (which are both given for free to new players too). Has a very tiny 3-shot magazine compared to the usual 4 most SGs get which limits her firepower somewhat, but her skill offsets this a bit. A flawed unit and not a first pick for many lineups, but most SGs are interchangeable as far as front-row tanks go anyway, even if she's not as good at it as the other ones you'll get eventually. Her main merits are a decent aura shape and being free.

She does have a mod which...kinda makes her better? Will add that article soon...probably.

Called "The Northern Hemispheres" for fairly obvious reasons. Somehow, someone decided "Featherlight" clearly means "biggest tits on a t-doll possible." Her skill lets her do a bit of damage except you dont care about that sort of thing on a shotgun and its not like the skill has time to trigger on a typical fight (most SGs dont get to use their skills anyway). Still, well... she's a shotgun with 22 base armour. This puts her ahead of the lower end shotties like supershorty.

Despite having the lowest armor among the shotguns (tied with Captain China), her skill offsets this a bit. Also has the lowest HP among the 4 star shotguns though, but whatever, she can still take hits. Her main downside is the shitty aura, but she can at least do the job of eating hits.

A really shitty aura, average armor for a shotty. Prolly the worst shotgun currently available on EN except shotguns are wanted for their tanking ability or else you'd have picked literally anything else. With the release of SAT8 & company, she's even less useful, but hey, if you don't have anything else, she'll still do

Her mod, which makes her not dogshit, can be found in this article

AKA, SHARK-CHAN. Shitty aura shape, workable buff. Has surprisingly high HP for a 3 star shotty, and surprisingly ok damage, otherwise average tanking ability. With the release of better SGs, you'll want better if you can, but all shotguns are at least usable if you lack anything better.

Her unique makes her slightly better offensively, but still far away from being actually good at it, and 90% of the time you want your shotguns to tank.

MURRICAN SHOTGUN. The most usable aura of the 3 star shotguns currently on EN, though forcing her to be in an offtank position. 21 armor and a +armor skill. There's really not much to say about most of the shotguns besides "they'll do work if you really want them to."

Also a better catgun than IDW. IDWSG DA NYA.

She also has a mod, and the review for that can be found here.

She's still usable and good enough to deal with older content just fine, but the new shotguns currently available just blow her out of the water so hard. Sad day to be a pizzalion.

That skill happens to be giving your entire front row a 35HP shield, that takes armour into account first. It also has 5/8 uptime. Basically, if your SGs took scratch damage before? They should take literally nil now, unless its a really major fight or you were silly enough to go fight anti-armour enemies.

Unlike the other shotguns, she's focused on firepower instead, with her skill basically making her go DAKKADAKKADAKKA. You would want an Acc scope on her so she can actually hit anything. Sometimes used in 1SG/1HG/3MG formations to provide MAXIMUM FIREPOWER. Tiles are a little eh for that though. Armour is average.

Usable I guess? Really, one of the lower end shotguns, but she can still tank. Just not a first choice when you now have actual choice in shotgun variety. Doesn't do anything badly, but doesn't really excel either. Does have decent offtank tiles though, if you want to run 2SG.

She has good stats. But shotgun powercreep is real. Also if you have her, you've been playing a long time. Why don't you have a better shotgun? Huh? Waifu? No, she's shit. Get over it.

On top of that she has a nuke skill that... honestly doesnt usually come up, but when it does, it's pretty much the biggest nuke on a shotgun you get (2 hits for 8x vs primary, 12x area around primary). As a bonus, if the first shot kills the primary, the secondary BOOM changes targets (uses standard grenade targeting). Note that due to her ammo and reload speeds, if you want to fire the first nuke immediately, you will likely need to reload cancel her.

Aka M1887. She's a shotgun, so she will do shotgun things shotgun-y (read: facetank with her armour), but is not particularly impressive at it. Her stats are okay (but worse than most other 5* shotguns), her tile buffs are the weakest of all 5* shotties (and most 4*!)… and her skill is downright useless, because it has a ridiculously long 15 second cooldown and if you can use it appropriately, well shotguns aren't what you want to use for that fight.

As far as free SGs are concerned, a minor upgrade over 97S if you don't consider 97s's mod.