At least 2 SIG-Sauer P226 pistols are seen in Season 1 in the case that was in the possession of Deputy US Marshal Edward Mars (Fredric Lane). The pistols are seen used by several of the characters throughout the season. In "There's No Place Like Home, Part 1" (S4E12), Kate is armed with one.
In "There's No Place Like Home, Part 3" (S4E14), Kate keeps a Jericho 941 "Baby Eagle" in her home that she takes out when she senses that someone is in Aaron's room.
In "The Economist" (S4E03), Sayid is seen pulling a Glock 17 in a confrontation with Elsa. This Glock appears to have the Lasermax built-in sight.
Error creating thumbnail: File missingA Generation 2 Glock 17 in 9x19mm. This model added finger stepping and cuts to the backstrap of the frame to make it easier to hold than the Generation 1 model.Error creating thumbnail: File missingIn "The Economist" (S4E03), a closeup of the Glock 17 that Sayid during a confrontation in a hotel room . Note the LaserMax built in laser under the barrel, it can be turned on and off by pushing the takedown lever in.
Glock 17 (Stainless Slide)
In "The Economist" (S4E03), Elsa is seen pulling the stainless slide Glock 17.
File:Glock 17.jpgGeneration 3 Glock 17 with stainless steel slide and adjustable sights 9x19mmError creating thumbnail: File missingIn Season 4's "The Economist" (S4E03), Elsa is seen pulling the stainless slide Glock 17.
Walther P38
Walther P38s are seen multiple times over the course of the series. In "The Beginning of the End", Juliet (Elizabeth Mitchell) takes a Walther P38 at the beach camp and carries it throughout the season. In "Something Nice Back Home", Juliet gives a P38 to Jin (Daniel Dae Kim) when he treks to The Staff station. In "There's No Place Like Home, Part 2" (S4E13), Richard (Nestor Carbonell) shoots Keamy (Kevin Durand) in the back with a P38. Please refer to the Discussion section for a more detailed listing of the P38's use in Seasons 2-6.
In Season 4's "The Shape of Things to Come" (S4E09), Benjamin Linus (Michael Emerson) takes from a piano bench an 870 with a pistol grip and shortened barrel when Martin Keamy's mercenaries storm his camp. These shotguns are also seen inside Swan Station's armory.
The Remington 7400 rifle is one of the rifles carried by Richard's men throughout Season 4.
Remington 7400 - .308Error creating thumbnail: File missingIn the center, one of Richard's men holds the Remington rifle in "There's No Place Like Home, Part 2" (S4E13).
Battle Rifles
M1 Garand
The M1 Garand is seen in the later episodes when used by the Others on the island. Sawyer also uses one.
In Season 4's "There's No Place Like Home, Part 1", Sawyer is seen carrying the L1A1, which is the British-made variant of the FN FAL made by Enfield. He is seen with it until it's thrown from the helicopter as he bails out.
The M4A1 SOPMOD is carried by Martin Keamy and the mercenaries who attack the island in Season 4's "There's No Place Like Home, Part 1" and "There's No Place Like Home, Part 2". Most of the M4's are fitted with scopes, sound suppressors and foregrips. Although never used, Sayid can also be seen carrying one after the Mercenaries were killed off before getting on to the chopper.
Error creating thumbnail: File missingColt M4A1 Carbine - 5.56mmError creating thumbnail: File missingIn Season 4's "There's No Place Like Home, Part 2", one of Keamy's mercenaries aims his M4A1 SOPMOD. The M4s have been fitted various scopes, RIS foregrips and M203 grenade launchers. While fitted with suppressors as well, they seem to have no effect on the gun's report.
M1 Carbine
The M1 Carbine is another one of the common weapons used on the island.
Error creating thumbnail: File missingWorld War II Era M1 Carbine, with Dark Walnut Stock, 'L' peep sight and no bayonet lug - correct for most of WWII, shown with khaki sling and oiler and a period twin magazine pouch for buttstock
Submachine Guns
Heckler & Koch MP5A2
The Heckler & Koch MP5A2 is used by Martin Keamy (Kevin Durand) and the mercenaries, notably to shoot skeet on boat. Note the ambidextrous MP5-Navy trigger group.
