The following weapon were used in "Smokin Aces 2: Assassin' Ball".

Handguns

Beretta Px4 Storm compact

Used by Ariella Martinez (Martha Higared) in the restaurant shootout.

Beretta Px4 Storm compact - 9x19mm.

Ariella reloading her weapons.

Ariella dispatching her weapons.

Close-up of the gun.

Taurus PT92

Finbar McTeague (Vinnie Jones) carries a gold plated Taurus PT92 with pearl grips.

Taurus PT92AF - 9x19mm. The one used in the film is gold plated, with pearl grips.

McTeague checks and reloads his weapon.

Glock 17

Finbar McTeague (Vinnie Jones) carries a 2nd Generation Glock 17.

2nd Generation Glock 17 - 9x19mm.

Glock 22

2nd Generation Glock 22s are used by several agents in the movie and Lazlo Soot disguised as Agent Dumare.

2nd Generation Glock 22 - .40 S&W.

Lazlo Soot (Tommy Flanagan) wields a G22 disguised as Agent Dumare (David Richmond-Peck).

A female agent with a Glock 22.

Glock 22 seen in the hands of Agent Redstone (Hrothgar Mathews).

Walther PPK

Used by an undercover female agent in the restaurant shootout.

Walther PPK - 7.65x17mm.

Single Action Army

Used by Lester Tremor (Maury Sterling).

Colt Single Action Army with a 5.5 inch barrel - .45 Long Colt.

Luger P08

Seen briefly in the hands of Fritz Tremor during the attack on the armory.

Luger P08 - 9x19mm.

Seen in the hands of Fritz Tremor (Michael Parks).

Beretta 92FS

Used by the police officers in the end of the film.

Beretta 92FS - 9x19mm.

Smith & Wesson Model 64

Seen in the hands of an undercover female agent. It has a 3 inch barrel.

S&W Model 64 - .38 Special.

Unknown revolver

Used by Agent Baker (Clayne Crawford) as his main sidearm.

Unknown M1911 compact variant

Used by Kaitlyn Tremor when they steal the guns from the armory.

Machine pistols

SA Vz.61 Skorpion

Kaitlyn Tremor wields two SA Vz.61 machine pistols akimbo at one point in the movie. Her Skorpions seem to have the stocks removed.

Skorpion SA Vz.61 - .32 ACP

Kaitlyn Tremor going down with a pair of Skorpions.

Shotguns

Used by Malcolm Little (Christopher Michael Holley) in the restaurant shootout. It is fitted with a forward pistol grip, rear pistol grip, and a shell holder, much like in the movie Zombieland. It also has a heat shield.

Mossberg 500 - 12 Gauge.

Malcolm Little wielding his shotgun.

12 Gauge Double Barreled Shotgun

Used by Lester Tremor.

The guy on the right, Lester Tremor, has a 12 Gauge Double Barreled Shotgun.

Assault Rifles

AKMSU

Used by Kaitlyn "AK-47" Tremor when she is first introduced.

AKMSU - 7.62x39mm.

"Dismissed!"

M4

Used by Lester Tremor during the assault on the armory. Also an M4A1 is used by a soldier in a flashback photo. Lazlo Soot is seen with an unidentified assault rife in a flashback, but I'm assuming it's the same M4-prop that Lester Tremor uses.

Colt M4 - 5.56x45mm.

Lester Tremor returning fire with his M4.

Lazlo Soot with a M4 in a flashback.

A couple of soldiers commandeer M4's in a flashback picture, respectively.

Light Machine Guns

Daewoo K3

Fritz Tremor uses a Daewoo that has been mocked up to look like a M249 Para.

Daewoo K3 with a chopped barrel and buttstock to resemble an M249 Para - 5.56x45mm.

Minigun

Hand Held M134 Minigun

Used by Baby Boy Tremor (C. Ernst Harth).

A Hand Held M134 Minigun, that resembles the one used in the movie.

Baby Boy firing the Minigun. The muzzle flashes are obviously CGI.

NOTE: The ammo box of the minigun is tilted sideways. The muzzle flashes are obviously fake since weapon can't be fired, if the ammo box is in this position.