The following weapons were used in the film Tigerland:
All the US Army recruits including Roland Bozz (Colin Farrell), Jim Paxton (Matthew Davis), Miter (Clifton Collins, Jr.) and Wilson (Shea Whigham) can be seen using M16A1 rifles throughout the film. Wilson is notably seen loading a magazine of live ammo in his rifle at one point.
MGC Replica M16 rifle
The recruits are all seen carrying MGC M16 Replica rifles for scenes where the blank-firing M16 rifles were not necessary.
M60 Machine Gun
During a training exercise, An M60 machine gun is seen firing live ammunition over the heads of the crawling recruits.
The M1911A1 is seen being fired on the range. Wilson (Shea Whigham) can be seen pointing his M1911A1 at Bozz while still having live rounds in it. SSG Cota (Cole Hauser) carries the M1911A1 and fires it several times in the air while training the recruits in Tigerland.