Sucker Punch

Sucker Punch Promotional Poster featuring Baby Doll. Being still in production, promotional posters were revealed prior to Comic Con 2010 featuring all of the major female characters. The official theatrical poster has not yet been released.

The following screencaps are from the trailer.

WORK IN PROGRESS

The Following weapons were used in the film Sucker Punch (2011):

M1911A1

Revealed is a nickel plated engraved M1911A1 pistol with spare magazines. A Nickel M1911A1 is the primary weapon of Baby Doll (Emiliy Browning).

In a 'real world' sequence we see a closeup of an M1911A1 being fired

In a 'real world' flashback an M1911A1 is dropped by a girl running away.

Flintlock Pistol

During the trench battle with the World War One German Zombie Soldiers, Rocket (Jena Malone) uses a combination of bayonet and single shot flintlock pistol. She uses the pistol as a club in hand to hand combat, which is probably the most practical use for the antiquated weapon in that battle.

Rocket (Jena Malone) prepares to slam a Zombie German soldier with her Flintlock Pistol.

Rocket (Jena Malone) strikes with her Flintlock Pistol.

Remington 870

In the battle with armed automatons, Sweet Pea (Abby Cornish) uses a tactical Remington 870 Shotgun with surefire light and door breaching muzzle.)

Sweet Pea (Abby Cornish) sweeps left and then front when she enters the large hallway.

Sweet Pea (Abby Cornish) gets ready to engage an army of robots with her Remington 870 shotgun

Heckler & Koch MP7A1

Baby Doll appears to use a suppressed Heckler & Koch MP7A1.

H&K MP7A1 4.6x30mm with Zeiss Z-Point sight. This MP7 shown in SMG configuration.

Heckler & Koch MP5K

An Heckler & Koch MP5K is also seen being used.

Heckler & Koch MP5K - 9mm.

Heckler & Koch UMP-45

During the air battle and the sweep into the Dragon's lair, Rocket (Jena Malone) carries Heckler & Koch UMP-45 with foregrip and C-More sight.

Heckler & Koch UMP-45 - .45 ACP. This is a screen used UMP-45 that appeared in the film Live Free or Die Hard and was later used on the set of Iron Man (2008). It is one of many UMP-45s that appeared in both films and is in the same configuration seen in both films.

M4A1

An M4A1 is also used by one of the women.

Single Action Army

Looks more like a Colt 1860 Army with a Richards conversion. Note the rear sight on the frame ring, not the hammer. - Gunmaster45

Lewis Gun

Modified Mini-Gun

A Demon Samurai giant uses a modified Mini-Gun in his battle with Baby Doll (Emily Browning)

TBD Weapons

In the battle with the robots, we see heavily modified weapons which look like they may be based on real world guns.