Battle Royale is the 2000 Japanese feature film adaptation of the controversial 1999 Japanese novel of the same name by Koushun Takami, who later published a 3,000 page illustrated manga version of the story. The premise of the film revolves around "The Program", a government-sponsored event which forces randomly selected junior high school students who are armed with various weapons to eliminate each other until there is one remaining survivor. The film would spawn a 2003 sequel: Battle Royale II: Requiem.
Boy #20 (Kyoichi Motobuchi) is given a Smith & Wesson Model 19 revolver. Upon his demise, it is claimed and used by Boy #5 (Shogo Kawada).
Smith & Wesson Model 19 Snub Nose
Boy #20 (Kyouichi Motobuchi)'s weapon is a Smith & Wesson Model 19 Snub Nose revolver with rubber grips. After his death the gun is used by Boy #5 (Shougo Kawada) and later given to Boy #15 (Shuya Nanahara).
Smith & Wesson Model 66
Girl #2 (Yukie Utsumi)'s weapon is a Smith & Wesson Model 66 . After her death the gun is used by Boy #15 (Shuya Nanahara).
Colt Python
Boy #17 (Mitsuru Numai)'s weapon is a Colt Python revolver. After his death the gun is used by Boy #6 (Kazuo Kiriyama).
Walther PP
Boy #17 (Mitsuru Numai)'s weapon is a Walther PPK .380ACP. This later becomes Kazuo’s backup weapon which he keeps tucked in his belt, but the audience never sees it .
Glock 19
Girl #8's weapon is a two toned Glock 19.
Beretta 92FS
In all three versions, Boy #19 (Mimura)’s weapon is a Beretta that appears to be either a nickel plated 92FS or an Inox. It's got a polished shine to it in either case.
Girl #10 (Hirono Shimizu)’s weapon is a Colt M1911-.45ACP.
M1911A1 WATER GUN
use by Kitano
Shotguns
Franchi SPAS-12
Boy #5 (Shogo Kawada)'s assigned weapon is a stockless Franchi SPAS-12 shotgun. As with most on-film portrayals of the SPAS-12, the semi-automatic setting is ignored in favor of the manual pump-action setting.
Submachine Guns
IMI Uzi
Boy #10 (Ryuhei Asagawa)'s weapon is an IMI Uzi submachine gun. After he is killed by Boy #6 (Kazuo Kiriyama), the weapon is used by him.
IMI Micro-Uzi
Girl #16 (Yuka Nakagawa)'s weapon is an IMI Micro-Uzi fitted with some sort of flash suppressor. After she dies, the gun is used by Boy #15 (Shuya Nanahara).
Rifles
XM177E2
One of the soldiers is seen with a Colt XM177E2 carbine.
M16A1
Various solders are seen armed with M16A1 rifles throughout the film.
M16A1 (M16A2 Mockup)
Some of the soldiers seen during 3-B's introduction to the BR Program are seen with M16A1s (denoted by their full-auto capability displayed in the scene) outfitted with M16A2 handguards.
M4A1
A sparce few of the soldiers in the film are armed with Colt M4A1 rifles in lieu of their regular M16s.
M1 Garand
Other
Mk 2 hand grenade
Girl #5 (Izumi Kanai) is given several Mk. 2 hand grenades, but is killed before she can use them.