In a rear view, as Lily aims to put her gun away in its belt case, it's shown going smoothly in almost halfway. As the shot changes to a front view she seems to struggle getting it into the case as if it wasn't in partway yet.
One of the guns used in the mall shooting was a semi-automatic Tec-9. However, when the gun being fired in the video, it is the sound of a fully automatic sub-machine gun. A semi-auto cannot fire that rapidly, nor can it be made to fire like a full-auto.
EDIT: The TEC-9 is semi-automatic only, however, the pistol can be converted to be fully-automatic through third parties or individuals modifying the weapon. Depending on the method used, the fire rate can be anywhere between 600 RPM to 1500 RPM. The military version of the TEC-9, known as the MP-9, featured a fully automatic trigger group.
EDIT: The TEC-9 is semi-automatic only, however, the pistol can be converted to be fully-automatic through third parties or individuals modifying the weapon. Depending on the method used, the fire rate can be anywhere between 600 RPM to 1500 RPM. The military version of the TEC-9, known as the MP-9, featured a fully automatic trigger group.
One of the shooters is wearing a t-shirt from the clothing brand Affliction, a company formed in 2005. The plot is set in 1995.