Zas M21

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Zas M21196
Full name Zastava M21
Country of Origin Serbia
Manufacturer Zastava Arms
Artist nineo (Twitter)


Voice actor Asakura Azumi

Zas M21 is an obtainable Tactical Doll in the game.

Weapon Background

A distant relative of the Kalashnikov rifles developed by the Zastava Arms company in 2004, Zastava manufactured Kalash style assault rifles even before the splitting of Yugoslavia, Zastava M21 is a 5.56 calibre rifle developed with the experience of manufacturing Kalash pattern rifles. The M21 is the current standard issue service rifle for the Serbian Army.

The Zastava M21 is a conventional layout, gas operated assault rifle with a rotating bolt locking system. Chambers the 5.56x45mm NATO cartridge, M21 is fed by a 30-round magazine, able to achieve a rate of fire of 680 rounds per minute, covering an effective firing range up to 600 metres. On top of the operating mechanism, M21 also have many similar design features of a Kalashnikov rifle, such as the right side charging handle, behind the well magazine catch/release.

Like most other modern modular assault rifle designs, M21 can attach specific combat accessories based on sortie needs, the gun is compatible with items such as bipod and vertical fore grip. A derived model of the Soviet GP-25 underslung 40mm grenade launcher unit was designed for and issued to M21, 22mm calibre rifle grenade can also be launched from the muzzle flash hider. To improve compatibility with NATO issue accessories, M21 can undergo modifications and mount Picatinny rails. M21 also features a foldable stock made of rigid polymer and rifle forearm guard made of heavy-duty synthetic material.

Zastava Arms have experimented with different barrel forging processes, other than the conventional rifling barrel, M21 and variants also have access to barrels with different twist rate or even polygonal rifling patterns, barrels made for M21 are all plated with hard chromium to achieve a longer service lifespan.

Other than the main battle rifle variant, M21 have two shorter variants labelled as M21 S (Shorter barrel assault rifle) and M21 C (Carbine), differ mostly in terms of barrel length, overall weapon size/dimension/weight and firing performance in terms of accuracy/effective range.[1]

Character Info


Official character sheet of Zas M21

The second T-doll nineo contributed to Girls Frontline, The game already have a RF M21, so nineo addresses Zastava M21 simply as Zas to avoid confusions. Zas is a very eye catching T-doll with peculiar features: Mushroom head Odd hair style and colour, very visible nail polish of different colours, mismatching stockings and an odd earring piece on her left ear. General colour theme of Zas is black white and cyan added with a bit of orange. The colour combination of cyan and orange does give Zas a little bit of Sci-Fi look.

There is a triangle marking on her orange goggles, same markings can be found above her hips and on her tongue. No possible suggestions towards the meaning of these markings from neither MICA team nor nineo (yet).

Design concept of Zas' second costume Queen of the White Pieces can be found on nineo's weibo post here


Official character description states that she is a rationalized surrealist, rational actions are essentially her faith, her thoughts are backed up with solid reasons and realistic observations. She does have interesting hobbies that are not quite rational, one of which is finger nail painting, apparently each one of her finger nails all have a different fragrance (She even offers to paint the Commander's nails). Her overall personality characteristic is calm and obedient.

This weibo post from nineo is an unofficial character sheet for Zas, shown several features of Zas' character design and some character personality settings demonstrated through potential quotations. Note that the character setting part are not official descriptions from MICA team, but purely from nineo.


Zas features a very fast 4 second initial cool down grenade launching skill, which is as fast as the SMG units with Molotov skill while having a larger area of effect. The grenade damage multiplier itself is not high but it has two possible effects depending on how many units she hits with the grenade:

  • More than 3 units hit by the skill, the grenade inflicts a debuff that causes all the enemy units she hit to take increased damage.
  • Less than 3 units hit by the skill, Zas herself will do more damage per shot for a duration.

With the short initial cool down, the large area of effect and the fastest grenade launching animation, Zas' grenade skill is very effective against large crowd of enemy units, for example Dinergate swarms.

Story Involvement

Zas' costumes Queen of the White Pieces described her side story interactions with the Commander during 2018's Anniversary Glory Star event.


"This is classified information!"

This article contains spoilers. You have been warned. Click here to skip this part.

Costume story: Queen of the White Pieces

A squadron of T-dolls were chosen to perform a covert operation, they will infiltrate a formal party, with appropriate dresses, and to protect a large diamond from being stolen by the infamous "404 Thieving Group". Zas was one of the T-dolls of the squadron.


"Maintenance is still ongoing."

This article is a work in progress. Additional information will follow soon.

Game Data

61(x1)121(x1) / 605(x5)
20(x1) / 60(x5) 20(x1) / 60(x5)
19 55
5 41
6 48
Rate of Fire
 Rate of Fire
49 74
Movement Speed
 Move Speed
Critical Hit Rate
 Crit. Rate
Critical Hit Damage
 Crit. Damage
Armor Penetration
 Armor Pen.
Icon slot Accessory.png Icon Telescopic Sight S 2star.png Icon Holographic Sight S 2star.png
Icon Red Dot Sight S 2star.png Icon Night Combat Equipment S 2star.png
Icon Silencer S 2star.png
Icon slot Magazine.png Icon Armor-Piercing Ammo S 2star.png Icon Status Ammo S 2star.png
Icon Shotgun Ammo S 2star.png
Icon High-Velocity Ammo S 2star.png
Icon slot Doll.png Icon Microchip S 2star.png Icon Exoskeleton S 2star.png
Icon Ballistic Plate S 2star.png Icon Camo Cape S 2star.png
Icon Ammo Box S 2star.png
Affects submachine guns
Increases rate of fire by 12%
Increases evasion by 15%

Obtained from production only


Dialogue Chinese Japanese Korean English
Acquisition 指挥官……嗯和资料上的信息一致呢,我是Zastava M21,希望您接下来不会介意我的表现。 指揮官は…うん、資料の情報と一致してますね。私はZastava M21です。私のことはあまり気にしないでください。 지휘관... 음, 데이터의 내용과 똑같구나. 난 자스타바 M21, 나한테 너무 큰 기대를 하지는 말아줘. Commander... Hmm, this matches the information on the intel. I'm Zastava M21, hope you can approve of my performance from now on.
Introduction 关于我吗?也没什么可说的,就是人类不断贪婪武器的历史中诞生了我而已。Zastava兵工厂在原有的AK系列上改进,将我研发了出来,人类就是靠武器的不断进化,来证明着自己的进化吧。 Regarding me? Nothing much really, I was born somewhere among the history of humanity's greed for weapons. Zastava Arms made improvements on the AK series and developed me. Perhaps humanity wishes to prove they are still constantly evolving by evolving their weapons of choice.
Secretary 指挥官工作真勤快啊,稍微偷懒一下我也不会在意哦。 指揮官は真面目ですね。少しサボってても私は気にしませんよ。 지휘관은 정말 부지런히 일하는걸, 조금은 느긋하게 해도 괜찮을 것 같은데. Commander works so hard, I won't mind if you slack off every now and then.
给武器赋予人性……要我来说人形的这个设定也太不实用了吧。 武器に人間性を与えるなんて…人形にはあまりにも非実用的だと思います。 무기에게 인격을 부여한다니...나는 인형의 이런 설정들, 정말 별로라고 생각해. Giving weapons personalities... I don't think this is very efficient for us Androids.
我的指甲涂得不错吧?要不也给指挥官涂一个? きれいなネイルでしょう?指揮官にも塗ってあげましょうか? 내 손톱 잘 칠해졌지? 지휘관도 매니큐어 발라줄까? My nail polish looks good right? Would you like your nails polished too?
Secretary (post OATH)
지휘관, 다음번 데이트를 고민하는 것보단, 오늘 나를 어떻게 기쁘게 해줄지 생각하는게 어때? 후후...
Commander, instead of thinking about the next date, shouldn't you be thinking about how to make happy today? Hehe...
...풉, 뭐야 정말, 지휘관의 이런 모습 처음 보네. 내가 볼 때, 이건 현명한 판단이 아닌 것 같지만.. 어쩌면 이미 지휘관이 내 현실을 크게 바꿔놓은 걸지도 모르겠네...
...Ehh, what's going on, this this the first time I've seen you like this. Personally, I don't think this is a smart choice... But maybe my reality, just gotten crazy because of you...
Greeting 今天有不少任务吧?请尽快下达指示。 今日はたくさんの任務がありますよね?早く指示してください。 오늘은 임무가 많이 있군요. 어서 지시해주십시오. We have quite a few missions today, your orders?
T-Doll Produced 打招呼这样就行了,赶快投入训练吧。 挨拶は結構です。さっそく訓練に付き合ってもらいます。 That's enough for a greeting, hurry up and train yourself.
Joining an echelon 请好好考虑一下阵型吧,最重要的是要将我配置在哪里。 陣形をちゃんと考えましょう。一番肝心なのは私の配置です。 Please consider the formation, especially where I'm placed.
Enhancement 到底能变得多强呢,要来试试吗? どれだけ強くなったのか、試してみますか? How much stronger can I become, wanna try?
Dummy-linking 仔细看看的话……我还…挺可爱的。 よく見たら…私って…結構かわいい。 Observing closely... I'm... Actually pretty cute.
Logistics (start) 指挥官,一次多拿点物资怎么样?一直跑后勤也很累。 指揮官、多めに狩ったらどうですか?遠征も結構疲れますし。 Can't we fetch more resources in one go? Running logistics all the time is tiring.
Logistics (end) 这样就行了……可不要说不够哦? これでよし…足りないとは言わせませんよ? That's that done... Don't say it isn't enough.
Autobattle 那些家伙又来了吗?迅速清理干净吧。 あいつらがまた来たのか?さっさと片付けましょう。 Those guys are back? Let's hurry up and sweep them.

Dialogue Chinese Japanese Korean English
Starting a combat mission 指挥官不用上前线也可以吗?真是羡慕呢… 指揮官は前線に行かなくてもいいんですか?羨ましいですね。 Commander don't have to be on the front line? I'm jealous now...
Starting a battle 放心吧,会让你死个痛快的。 安心して。楽に死なせてあげます。 Don't worry, you will die with haste.
Skill activation 要打哪个部位呢? どこに当てましょうか? Which part of your body should I aim this at?
就这样来! そうしましょう! Just like that!
就看运气吧…… 一か八か…… Let's try my luck...
Heavily damaged 咕……稍微要拿出点真本事了。 くっ……少し本気を出してみますか。 Ughh... Time to get serious.
Retreat 错误犯的有点多了吗……在此就暂且撤退吧 ミスは多すぎるか…ここは撤退しましょう。 Things went a bit wrong...? Let's retreat for now then.
MVP 战斗了却不获胜的话,只是白白浪费资源而已。 戦いに勝たなくては、資源の無駄になってしまいます。 Fighting a battle without winning is just a waste of resources.
Restoration 战场上负伤是常有的事,习惯了就好。 戦いに負傷は付きものです。慣れればいい。 It's common to sustain wounds from battle, just get use to it.

Dialogue Chinese Japanese Korean English
Christmas 要怎样才能让我相信有圣诞老人?除非让我打中他……开玩笑的。 How do you make me believe in Santa Claus? Let me shoot him... I'm kidding.
New Year's Day
Valentine's day


  • Zas is the only T-doll to have her mouth covered in her official art, damaged art, costume and damage costume art.
    • As evident from the character sprite animation and further artwork from nineo, she does have a mouth.
  • According to nineo's weibo post, the folder she use to store Zas related work was created on 24th of February, so she set that day as Zas' birthday.[2]


  1. Wikipedia entry on Zastava M21
  2. nineo Weibo post

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