Harold & Kumar Escape from Guantanamo Bay

The following guns were used in the film Harold & Kumar Escape from Guantanamo Bay:

SIG-Sauer P226

Homeland Security Agent Ron Fox (Rob Corddry) uses a SIG-Sauer P226 pistol as his sidearm throughout the movie. The U.S. Air Marshals who arrest Harold and Kumar on the plane to Amsterdam are also armed with P226s.

SIG-Sauer P226 9x19mm

Agent Ron Fox with his SIG-Sauer P226.

Heckler & Koch MP5A3

M4A1 Carbine

M4A1 with M68 Aimpoint scope and RIS foregrip 5.56x45mm

M16A2 rifle

Double Barrel Shotgun

The owner of the whorehouse uses a (sawed-off?) 12 Gauge Double Barreled Shotgun to shoot Neil Patrick Harris in the back twice after he brands his name on a hooker's butt. Strangely, without reloading, she fires a third shot that shatters NPH's Car window.

1960s Era Commercial Stevens hammerless side by side shotgun - 12 Gauge.

It's actually a strip club -

Wrong! its a whorehouse

Rifle

Used by a redneck to shoot a deer.