Counter-Terrorism Unit Agent Jack Bauer (Kiefer Sutherland) throughout Season 1 carries the SIG-Sauer P228 with a nickel-plated slide as his weapon of choice. An interesting and well-known goof is that in several scenes, the gun changes from the SIG-Sauer P228 to a SIG-Sauer P229.
CTU Director Richard Walsh (Michael O'Neill) uses a sound suppressed Beretta 92FS when he is taking fire from well-trained assassins during the episode "1:00A.M. - 2:00A.M.". This gun is also used by Ira Gaines' (Michael Massee) men about to execute the Bauer family during the episode "7:00A.M. - 8:00A.M.", and the LAPD officers also carry it. Used by Ira Gaines to kill Dan. Eli's weapon, taken from him by Teri Bauer (Leslie Hope) during their attempted execution.
Several AK variants are seen in the hands of henchmen throughout the season. A Chinese made Norinco Type 56 is seen slung over the shoulder of one of Ira Gaines's henchmen. AKM rifles are used by Andre Drazen's men during the assault on the DOD Class 3 Detention Facility and at the docks.
Oddly, this appears to be on the table Dan's corpse was placed on, despite that his weapon was the Smith & Wesson 5904 below. Also seen used by one of the guys helping Frank rip off the dealers, and some of Ira Gaines' other men.
Rick Allen (Daniel Bess) grabs an IMI Uzi during the rescue of Jack Bauer's (Kiefer Sutherland) family during 11:00A.M. - 12:00P.M. Jack (Kiefer Sutherland) also uses an IMI Uzi to set off a car explosion during 11:00A.M. - 12:00P.M. This SMG is also used by Andre Drazen's men.
Ira Gaines (Michael Massee) hunts Jack Bauer (Kiefer Sutherland) through the woods at the compound with a Norinco NDM-86 chambered for .308. The Norinco NDM-86 is a Chinese-made clone of the Soviet SVD. The squared off shape of the box magazine shows the chambering as being in .308 rather than the curved magazine for the rifle's original 7.62x54R cartridge.
CTU tactical teams are carrying Heckler & Koch MP5A2 submachine guns during the rescue of Jack Bauer's (Kiefer Sutherland) family during 12:00P.M. - 1:00P.M.
Alexis Drazen (Misha Collins) kills Kevin Carrol (Richard Burgi) with his Glock 19 9mm to tie up loose ends. Nina uses a silenced one when her cover is blown and she goes into the computer room.
Agent Ted Paulson (Kevin Ramsey) draws his Glock 17 after knowing there's a security breach at the safe house during during 3:00P.M. - 4:00P.M. The assassin Jovan Myovic's USP switches into one of these when he's hiding behind a tree on the Bauer property. Jack also steals one from a Secret Service agent and later uses it during the rescue of his family.
Some type of M16A2 carbine variant (probably the Model 725) with chopped barrels and fake XM177-style flash suppressors installed. Used by Jack Bauer, Warden DeSalvo (Lou Diamond Phillips), and some untrained civilians during the raid on the DOD Class 3 Detention Facility.
Jack Bauer (Kiefer Sutherland) takes two Heckler & Koch USP pistols into the climactic gunfight with the Drazens during 11:00P.M. - 12:00A.M. and fires them akimbo for the majority of the fight, killing a Drazen henchman and Andre Drazen (Željko Ivanek) in this manner. After being wounded by Viktor Drazen (Dennis Hopper), Jack Bauer then kills him with his one remaining USP, emptying the magazine into his body. A common mistake is that when his is empty the slide stays locked in place and it clicks each time he pulls the trigger.
A suppressed Heckler & Koch USP was used by Jovan Myovic, an assassin working for the Drazens, whilst attempting to kill Teri Bauer. This pistol is also used by well-trained assassins during 1:00A.M. - 2:00A.M.
