Combat Pragmatist: Keeps her barrel wrapped in a plastic bag when she needs to run through mud, and when her action gets mucked up, she works the forward assist by fanning it (cribbing a technique used for rapid-firing a single-action revolver).
Genre Savvy: She does as well as she does because she is very aware of her own shortcomings, and works to overcome or mitigate them.
Happily Adopted: She was adopted into Ichiyon/14's family (Ichiyon was produced by Springfield, while Ichiroku was produced by Armalite and Colt). Funco states that the clearest way to describe it in human terms is to say they're stepsisters.
The Illegible: Her writing is bad enough that when she writes "Funco" (フンコ) in her diary she reads it as "Fucco" (フッコ).
Funco, not knowing about the diary, mistakes this for Ichihachi doing her a favor by not using the nickname that she hates. Ichiroku lets her keep believing that.
Voiced by: Aya Goda (Japanese), Juliet Simmons (English)
16's cousin and Funco's roommate. Based on the AR-18.
But Not Too Foreign: She is part American and part Japanese. This references the fact that she was designed by ArmaLite and one of her manufacturers is HOWA Machinery Co.
Only Sane Assault Rifle: Compared to her four friends, Ichihachi is less goofy and a LOT more down-to-earth. She also seems to spot details that Funco or Ichiroku might brush off — like G3 coming to school in her sister's place.
A transfer student from another school alongside Galil, Sako plots to take over Seisho Academy Middle School by humiliating the best students. To do this, she plans on winning the jungle wargames tournament sponsored by the school. Based on the Finnish SAKO RK95 TP, export version.
Combat Sadomasochist: In the animated jungle wargames tournament (which originally takes place in the manga mind you), she actually feels herself up during the fight against Funco's team. She pretty much gets off on shooting Funco after she's already won the match.
Knight of Cerebus: Her blood chillingly sadistic torture of Funco and attempted murder of Sig via sniper rifle coldly reminds the audience that Upotte is about weapons fighting battles, and in battles people die...
Sako's partner and a fellow transferee. Like her, Galil plans on defeating the best students of Seisho Academy in the jungle wargames tournament. She stays in Seishou after the wargames end. Is a little slow. Based on the Israeli Galil AR.
Because You Were Nice to Me: Part of the reason why she sticks to Ichihachi ever since. Well, that, and Ichihachi did fish her out of the lake.
Imperial Stormtrooper Marksmanship Academy: When firing her M14 on full auto. Possibly in reference to the early, full-auto capable versions of the M14, which were impossible to control in that mode - according to 16, her spread is about 10 meters. The uselessness of this feature resulted in the full auto trigger group being locked on semi-auto or removed entirely from almost all M14-style rifles made since.
Strong Family Resemblance: All of her sisters strongly resemble her; in reality, nearly all of Heckler & Koch's product lines in the Cold War were derived from the G3.
One of G3, M14, and FAL's classmates. Obviously based on the American AR-10, which means that she's related to Ichihachi, at least on her non-Japanese side. Featured in Upotte Nano.
AR-10's friend, and yet another of G3, M14, and FAL's classmates. Based on the Italian Franchi LF-59, which is derived from the FN-FAL. She takes over for G3 during the Enoshima trip when the former is forced to attend remedial classes. Featured in Upotte Nano, as well as the main manga.
Strong Family Resemblance: Looks like a loli G3 - because the MP5 is essentially a G3 in submachinegun size, chambered for 9mm. Taken further in that her "younger" sisters, MP5K and MP5SD, could pass for being triplets with her.
One of Empi's classmates, who wants to be the "leader" of the elementary schoolers. As she thinks that Empi is the leader, she keeps on challenging her in order to take her place. Obviously based on the first model in the Israeli line of Uzi submachineguns.
The Rival: To Empi, or at least she thinks she is.
Another of G3's younger sisters. Despite being an elementary-schooler, she has the same height and figure as a middle-schooler. Based on the German HK53.
Huge Schoolgirl: She is as tall as a middle school student; it is something that embarrasses her. It is a reference to her firing assault rifle rounds instead of pistol rounds like other SMGs.
Strong Family Resemblance: To G3, MP5 and HK33E. However, she wears the standard Atami uniform and not the uniform worn by her sisters because the particular variant of the HK53 that she's based on, the A3 variant, uses a retractable stock, unlike the solid fixed stock on the other G3 derivatives.
Aug's younger sister, and the "boss" of the grade school dorm (much to Uzi's chagrin). Blunt and more than a little too sure about herself and her sister.
The personification of the Japanese Howa Type 64 Battle Rifle. As she is chambered for 7.62x51mm NATO rounds, this means she is on the same year level as G3, FAL, and M14. Assumed to be one of Ichihachi's cousins on her Japanese side. Featured in Upotte Nano.
The personification of the Japanese Howa Type 89 Assault Rifle, and younger sister of Type-89. Since she uses 5.56mm rounds, this puts her in the same year level as Funco, Elle, Sig, and Ichiroku. Assumed to be one of Ichihachi's local cousins. Featured in Upotte Nano.
An assault rifle who met up with the friends on their trip to Enoshima. While being a gun personification like Funco and her friends, the school that she goes to is a normal public school, meaning that it's attended by human students. She seems to have a history with Funco, which makes things awkward when around her. She obviously is based on the Italian Beretta AR 70/90 .
Honey Trap: Tries this to get the teacher to stay in Enoshima. It doesn't really work.
The Rival: Her resentment of FNC apparently stems from the fact that they share similar designs.
Token Human: Inverted. Both she and SPAS are the token guns to the school they attend.
A friend and classmate of AR 70/90, who meets up with the main cast at Enoshima. She is the personification of the Franchi SPAS-12 , a combat shotgun from Italy.