When Al Simmons (Michael Jai White) is still a (human) A-6 operative and has not yet become Spawn, he is seen on several missions carrying a Heckler & Koch MP5K as his weapon of choice. In the scene where he carries out an assassination at a military air base in Hong Kong, his MP5K is fitted with a suppressor.
When Al Simmons tells A-6 Director Jason Wynn (Martin Sheen) that he doesn't want to be an assassin anymore, Jessica Priest (Melinda Clarke) sits down on the couch in Wynn's office. She has an unknown compact pistol concealed on her thigh beneath her skirt.
While he is at A-6 talking to Jason Wynn, Al Simmons has a nickel-plated or stainless pistol in a shoulder holster. It appears to be a Beretta 92FS Inox, but this is not certain.
Jessica Priest (Melinda Clark) uses a Colt 9mm submachine gun (RO635) in the North Korean bio-chemical weapons plant; it is fitted with an flammable liquid-squirting canister under the barrel, a C-More red-dot sight, and a pair of laser sights.
Spawn (Michael Jai White) and various A-6 personnel are seen wielding weapons that appear to be FN P90 personal defense weapons. However, they are actually Cobray M11/9 machine pistols that have been visually modified to resemble P90s. In some scenes, the long stick-like magazines of the Cobrays can be seen protruding from beneath the weapons' grips as they are fired.
File:SpawnP90.pngOne of the fake FN P90s (actually a dressed-up Cobray M11/9) used in Spawn; this gun is currently being sold by Long Mountain Outfitters (see http://www.longmountain.com/inventory/1479-m11-9).Error creating thumbnail: File missingA close-up of one of the movie's fake FN P90s (actually a dressed-up Cobray M11/9) in a storage container. Another type of silver machine pistol, also based on the Cobray, sits on top of the fake P90.Error creating thumbnail: File missingA close-up of the "P90"'s muzzle as Spawn sets a bandoleer of grenades down next to it.Error creating thumbnail: File missingSpawn fires his "FN P90" as Jessica Priest during the shootout in the hotel. The image is a bit blurry because he's running, but note that the stick-like magazine of the Cobray M11/9 is visible beneath the stock.Error creating thumbnail: File missingA-6 personnel fire their FN P90s at Spawn outside, while he's climbing the building's exterior.Error creating thumbnail: File missingAnother view of an A-6 soldier with a fake "P90" in hand, behind the guy with the light.Error creating thumbnail: File missingSpawn hands Cogliostro (Nicol Williamson) his guns as he goes off to fight the Clown; one is a fake FN P90, the other is one of the silver machine pistols.
Modified Cobray M11/9
Spawn (Michael Jai White), Jessica Priest (Melinda Clark), Jason Wynn (Martin Sheen) and many of the A-6 personnel are also seen using unusual silver machine pistols in many scenes. Like the movie's fake FN P90s, these are also Cobray M11/9s that have been dressed up with movie props to appear "futuristic".
During the scene when Spawn fights the Violator (John Leguizamo), he uses an Olympic Arms OA-93 AR-15 pistol converted to full-auto and fitted with a buffer tube (a necessary modification for the weapon to fire blanks). This same prop weapon also appears in a number of other movies, including Bad Boys and Clear and Present Danger.
During the scene in which he breaks into the A-6 armory, Spawn can be seen loading up a short-barreled, stockless version of the Armsel Striker or its American cousin, the Street Sweeper. This weapon is fitted with a red-dot sight, and it is portrayed in the film as a grenade launcher when it is used by the Clown (John Leguizamo).
In the A-6 armory, Spawn can be seen loading a magazine into a Heckler & Koch HK93 rifle (it has the non-detachable lower receiver, plus the magazine well clearly reads "HK93").
At the hotel where Spawn crashes the Consortium party, a number of U.S. honor guard soldiers armed with either Springfield M1903 or M1917 Enfield bolt-action rifles joined the A-6 personnel in shooting at Spawn while he was climbing up the outside of the hotel. The rifles appeared to be painted white and are still able to cycle and fire live ammunition.
When Spawn is planning to run off and kill the Clown, he grabs a short-barreled Steyr AUG from his arsenal which is only barely seen for a second. Due to a continuity error, the weapon becomes a Mossberg 500 Bullpup as soon as he turns around to face Cogliostro, who tells him that guns are useless. When Spawn is grabbing weapons from the A-6 armory, magazines for the AUG can be seen amongst the weaponry he has scattered across the floor, but the weapon itself can only be seen for a second later in the film.