The film opens with a Columbian soldier in a personel truck seen armed with an SKS rifle in the Columbia shootout.
G3
A soldier is seen briefly with a G3 rifle, or what could be an HK91 rifle, but it is never seen close enough.
Steyr AUG
A Columbian soldier is seen very briefly with a Steyr AUG assault rifle.
Browning M2 M1919A4 .30 cal
Seen briefly mounted on a Columbian jeep.
RPD
A Columbian soldier is seen briefly using an RPD.
FN FNC
A Columbian soldier is seen briefly with and FN FNC carbine.
M16A1
Columbian soldiers can be seen with M16A1 rifles.
Colt Python
Campus guards and police officers, as well as the border patrol men all use Colt Python .357 revolvers.
Beretta 92SB
Jack Thorpe, the American terrorist uses a Beretta 92SB as his sidearm. When first at the school, he shows it to the guard. When the guard goes for his gun, it switches to a little .22 auto soundsuppressed mockup. A police infiltrator uses a Beretta 92SB at the end of the film to deliver the fatal shot to Luis.
Glock 19
Luis Cali (Andrew Divoff) uses a Glock 19 2nd generaion compact 9mm as his weapon of choice.
Norinco Type 56-1
One of the terrorists uses a Norinco Type 56-1, as noted by its hooded front sight and under-folding stock. It is strangley fitted with an AKM style muzzle, making it similair to the gun Danny Trejo used in Heat.