Or SKS for short. Self-buffs RoF, but with too weak stats. Between G43 and M14 you have enough good low-rarity rifles to keep you supplied while you work on better ones.

The Night Empress. The last word in Night Battle ARs (though 9A-91 gets close with her unique). Also somewhat usable during the day (G41 tier), but having +200% damage at night allows her to even do some damage to armor despite being an AR.

That said, with armour increasing dramatically in future events, most likely not worth duping. By Singularity, and especially later, armour will have increased to the point of making even low-tier rifles much better than ARs.

Welrodski! ...By which I mean she's basically Welrod but 3 star, with lower numbers and an aura that wants her in the middle (or front works too). Usable if you lack Welrod and honestly not actually bad, but HG builds are cheap and she's pretty common so she might get annoying to get eventually. Also her -acc skill stacks with Welrod, and can be combined with a +evade skill for silliness.

Good with unique gear and mod3. Less good before digimind evolution. Workable though.

Well EN is now having her special equipment, she can be worth it. Its a very significant boost (Puts her almost on par with NTW for raw ATK stat) and she can 1-shot stuff as an opener pre-skill. She'll be decent but not quite a priority yet.

Of note, she has almost as much ATK as NTW with her chip. This has certain uses to a creative commander.

AKA AK-47

Yes, the game pretends she's a reward.

No, she's still cores.

ALL BOW TO ARMALITE

Very good buffs, not good in her own stats though. Skill is blah-ish but serviceable at night. When she gets to MOD3, however. Becomes COMMISSAR NAGANT. May or may not land you in jail (or gulag as the case may be). She does say it herself afterall, about your odd taste...