Hawaii Five-O is the 2010 remake of the classic CBS television series. In this version of the series, former Navy SEAL Steve McGarrett (Alex O'Loughlin) is recruited by the governor of Hawaii to head up a new crime task force in the state known as Five-O. The rest of the cast includes Scott Caan as Danny "Danno" Williams, Daniel Dae Kim as Chin Ho Kelly, and Grace Park as Kono Kalakaua.
The following weapons were used in the series Hawaii Five-O:
Cmdr. Steve McGarrett (Alex O'Loughlin) carries a SIG-Sauer P226 as his sidearm (most likely due to his background as a Navy SEAL, which issues the P226).
P226 E2
For the first four episodes of the show, McGarrett carries the original German-made P226 with the mandrel-stamped slide, but in Episode 1.5, "Nalowale", he switches over to the new P226 E2 variant.
SIG Pro SP2009
The SIG Pro SP2009 is the main sidearm carried by Detective Danny "Danno" Williams (Scott Caan).
Kel Tec PF-9
Kono (Grace Park) was given a Kel-Tec PF-9 by McGarrett at her informal academy graduation in Episode 1.2, "Ohana".
As a result of a continuity error, the Heckler & Koch USP Compact used by Drago Zankovic (Peter Stormare) in Episode 1.2, "Ohana" magically becomes a newer Heckler & Koch P30 in a single close-up. It later goes back to a USP Compact when he's holding the gun in Kono's car.
Smith & Wesson 3913
Kono is armed with the Smith & Wesson 3913 as her main sidearm, seen in episode 5 "Nalowale".
Kimber Custom TLE II
Russel Ellison is armed with the Kimber Custom TLE II in "Nalowale", which somehow identified him as more than usual security for an American ambassador.
Smith & Wesson 5906
Used by the Honolulu Police as their main sidearm. Also used by Chin Ho Kelly as his main sidearm. Ex-Navy SEAL Graham Wilson (Adam Beach) uses a S&W 5906 during a hostage situation aboard the USS Missouri in episode 1.7, "Ho'apono".
Revolvers
Unknown Revolver
Used by Walton Dawkins (Balthazar Getty) in episode 1.4 "Lanakila" after escaping from the Halawa Corrections Facility.
Submachine Guns
FN P90-TR
FN P90-TR submachine guns with suppressors and C-More sights are used by Roland Lowry's (Scott Cohen's) kidnappers in Episode 1.2, "Ohana".
Heckler & Koch MP5SD3
Heckler & Koch MP5SD3 submachine guns with Navy trigger groups are used by some of Roland Lowry's (Scott Cohen's) kidnappers in Episode 1.2, "Ohana".
Heckler & Koch MP5A3
McGarrett uses a Heckler & Koch MP5A3 submachine gun with a RAS forend in episode 1.8, "Mana'o".
Heckler & Koch MP5K-PDW
Danno uses a Heckler & Koch MP5K-PDW during a shootout with members of the Ochoa cartel in episode 1.8, "Mana'o".
Shotguns
Serbu Super Shorty
Chin Ho Kelly uses the Serbu Super Shorty as his primary weapon, seen in "Malama Ka Aina" and "Nalowale", the former also as a melee weapon.
Remington 870
Chin uses the Remington 870 with ghost sights in "Ohana" when he rescues Kono and the kidnapped victims from Serbian criminals with McGarrett and Danny. He also uses it in "Lanakila".
Assault Rifles
M4A1 Carbine
In the pilot episode, the M4A1 carbine is used by the U.S Army troops that accompany McGarrett while transporting a prisoner in Pohang, South Korea. In "Lanakila", the Hawaii Sheriff Division's SWAT unit was armed with M4A1s when they were deployed to the Halawa Corrections Facility to stop a supposed inmate breakout. Honolulu Police SWAT operators use the M4A1 as their main assault rifle in "Nanowale". Honolulu Internal Affairs Sergeant Cage (Jon Seda) is armed with a M4A1 in episode 1.8, "Mana'o".
Micro Galil
In the pilot episode, a Micro Galil is used by Snakehead human trafficker Sang Min (Will Yun Lee) when he gets into a shootout with McGarrett and Williams.
Heckler & Koch G36C
The mercenaries who ambush McGarrett's convoy are armed with Heckler & Koch G36C rifles. One is also used by suspect that gets into a standoff with McGarrett.
Heckler & Koch HK416
In the pilot episode, McGarrett is shown using a Heckler & Koch HK416 while escorting the prisoner convoy in South Korea. Kono and Detective Kaleo (Jason Scott Lee) both use HK416s during the gunfight with Ochoa cartel drug traffickers in episode 1.8, "Mana'o".
FN SCAR-L
Several of the Army MP's in McGarrett's convoy are armed with the FN SCAR-L, batting against mercenaries deployed in Pohang.
AKMSU
AKMSU carbines are used by human traffickers during the shootout at the pier in the pilot episode. Danno also uses an AKMSU for part of the gunfight. Victor Hesse (James Marsters) also grabs an AKMSU dropped by one of his henchmen and uses it to shoot at McGarrett. Ochoa cartel gunmen in episode 1.8, "Mana'o", are armed with AKMSUs.
FN F2000
A couple of FN F2000 assault rifles are at a weapons locker behind McGarrett and Danno in the Five 0 headquarters in Honolulu from the episode "Nanowale".
Battle Rifles
M1 Garand
The Honolulu Police Department's honor guard team uses M1 Garands in John McGarrett's funeral in the pilot episode.
Sniper Rifles
Accuracy International AW
Used by the Hawaii Sheriff Division's SWAT team in taking down a supposed escaped inmate in "Lanakila".
Heavy Weapons
FN MAG (M240)
The FN MAG mocked up as an M240 is used by an Army escort that engages the hostile gunship.
Others
Defense Technologies 37mm Gas Gun
A Hawaii Sheriff Division SWAT operator aims the weapon at a supposed escapee in "Lanakila" from the Halawa Corrections Facility, having an EOTech sight.