A woman pulls a stainless Ruger GP101 revolver out of her handbag when she finds out there might be an intruder in her home.
Unknown Assault Rifle
Some thug is seen with an unknown assault rifle. Because of the sight and frame, it could be a weapon of the MP5 family with the rear sight removed.
This shot gives you another idea that the weapon might be an MP5K or like.
It's a short barreled Sig 556, I noticed most of the gang members were using them it when I saw the movie in theaters
Assorted Handguns
Paul Hodges suits up with a lot of guns at some point in the film.
Trivia
In "Green Band" trailers (approved for all audiences), characters are not allowed to point guns at other characters in the same frame. Quite often, the character's weapon will be erased with computer graphics in order to comply with the ratings. Other examples can be seen with the trailers for Iron Man and Indiana Jones and the Kingdom of the Crystal Skull.