The [[Bofors 40mm]] Anti Aircraft gun is seen used by US troops defending Los Angeles as well as Ward Douglas ([[Ned Beatty]]). The latter is using the towed version.
The [[Bofors 40mm]] Anti Aircraft gun is seen used by US troops defending Los Angeles as well as Ward Douglas ([[Ned Beatty]]). The latter is using the towed version.
[[Image:40mm bofors.jpg|thumb|none|400px|Bofors 40mm L/60 AA gun in a Boffin mounting - 40×311mmR]]
[[Image:40mm bofors.jpg|thumb|none|400px|Bofors 40mm L/60 AA gun in a Boffin mounting - 40×311mmR]]
[[Image:1941 05.jpg |thumb|none|600px|]]
[[Image:1941 05.jpg |thumb|none|601px|Willy and Joe, the soldiers manning the [[Bofors 40mm]], are actors Michael McKean and David L. Lander, better known for their portrayals of "Lenny" and "Squiggy" in the ABC sitcom ''Laverne & Shirley''. ]]
[[File:Bofors 40mm trailer.jpg|thumb|none|400px|Bofors 40mm L/60 AA gun in a wheeled trailer mounting - 40x311mmR]]
[[File:Bofors 40mm trailer.jpg|thumb|none|400px|Bofors 40mm L/60 AA gun in a wheeled trailer mounting - 40x311mmR]]
[[Image:1941 29.jpg |thumb|none|600px|]]
[[Image:1941 29.jpg |thumb|none|601px|Ward prepares to use the gun.]]
The M1911A1 is carried by several characters in the film including Capt. "Wild Bill" Kelso (John Belushi), Col. "Madman" Maddox (Warren Oates) and Captain Loomis Birkhead (Tim Matheson).
While cleaning her house, Joan Douglas (Lorraine Gary) finds a Webley Mk VI pistol under a couch cushion.
Submachine Guns
M1928A1 Thompson submachine gun
The M1928A1 Thompson machine gun is used by US troops defending Los Angeles.
Rifles
Arisaka Type 38 rifle
Arisaka Type 38 rifles fitted with bayonets are seen in the hands of Japanese sailors that capture Hollis Wood (Slim Pickens).
Remington 700
A Remington 700 is used by Claude Crumn (Murray Hamilton) to take potshots at the Japanese sub from the ferris wheel. This was anachronistic for World War II.
Springfield M1903
U.S. soldiers are also armed with M1903 Springfield bolt-action rifles in the film.
The Browning M2 Aircraft heavy machine gun is seen used by US troops defending Los Angeles. These machine guns are also as well supposed to be the primary armament of Wild Bill's P-40, but when fired these appear to be mockups.
Browning M1917 machine gun
Sgt. Frank Tree (Dan Aykroyd) fires the Browning M1917 freehand and when mounted on his tank. Later, Wally Stephens (Bobby Di Cicco) is seen using the tank's machine gun. Other Browning M1917 machine guns are manned by soldiers opening fire on the planes flying over Los Angeles.
The Bofors 40mm Anti Aircraft gun is seen used by US troops defending Los Angeles as well as Ward Douglas (Ned Beatty). The latter is using the towed version.