Cabin in the Woods, The
The following weapons were used in the film The Cabin in the Woods:
Beretta Px4 Storm
The Beretta Px4 Storm is the standard issue sidearm of the guards at the facility. It is first seen in the hands of a guard (Patrick Sabongui - credited as "Elevator Guard") who is sent to kill Dana and Marty. Then Marty Mikalski (Fran Kranz) takes the Beretta and shoots a zombie with it. Later he hands it over to Dana Polk (Kristen Connolly). The Director also tries to fire the pistol. One of the workers is seen committing suicide with a Px4. Daniel Truman (Brian White) also pulls out a Px4 when the creatures break in to the lab.
SG 552 Commando
Guards at the facility - only the Lead Guard (Phillip Mitchell) is credited - are seen with short-barrelled SG 552 Commando rifles with pronged flash hider and standard diopter sights. Some have attachments like a grip or ACOG (or both).
Heckler & Koch MP5K
Steve Hadley (Bradley Whitford) fires an MP5K when the creatures break in to the lab. It is not possible to identify the sub-variant, however the magazine release paddle can be seen for a brief second indicating that the gun is a genuine MP5K, not a converted SP89.