M6H magnum

The M6H Personal Defense Weapon System is a handgun in service with the UNSC. It is part of Misriah Armory's widespread M6 series. The M6H was in service as an officer's model as early as 2526 and was made the standard-issue sidearm of all UNSC personnel in 2555.

Specifications
The M6H is a semi-automatic, recoil-operated, magazine-fed handgun. It is an up-sized model (17% larger than standard versions) with a smart-linked KFA-2 x2 scope and an electroless nickel finish. It fires the M6 series' standard 12.7x40mm ammunition. The M6H is effective at reasonably long distances as well as its preferred close-to-medium-range.

D variants

 * M6-D10

R variants

 * M6-R59

M6H2 Personal Defense Weapon
The M6H2 variant had entered service by at least 2557. This variant sports a black polymer finish and a 12-round magazine. The M6H2 also boasts increased accuracy in comparison to the base model. It features a smoother slide design and a different top-mounted module (in place of the venerable KFA-2 x2) to support the smart scope Projection Sight functionality. Additionally the weapon appears to no longer be recoil operated and is instead gas operated. Also in 2557, this weapon had a Ruptive skin approved by the UNSC Ordnance Commission.

By October 2558, this weapon saw heavy use by Fireteam Osiris, Blue Team, and personnel.

M6H2 Whispered Truth
A cut-down M6H2 magnum without a smart scope system, under-barrel flashlight, or forward trigger guard. It also has a custom slide and can mount a suppressor. This variant sports a 18-round magazine. Unlike other pistols Whispered Truth fires in three-round bursts.

Changes from the M6G PDWS in Halo: Reach

 * Less damage, requires 6 shots to kill rather than 5
 * Higher accuracy/less bloom

Changes from M6H in Halo 4 to M6H2 in Halo 5: Guardians

 * Increased damage, requiring 4 shots to deplete shields followed by 1 headshot or 3 body shots
 * Drastically lowered rate of fire
 * Less bloom/greater accuracy
 * Increased magazine size to 12
 * More reserve ammunition
 * Can be smart scoped rather than utilizing smart-linked scope zoom
 * Zoom decreased from 2x to 1.5x due to use of projection sight for smart scope.

Halo Online
In Halo Online the M6H comes in several variants.
 * The default M6H has an 8 round magazine and 40 rounds in maximum reserve ammo.
 * The M6C/SOCOM has a superior fire rate than the default M6H.
 * The DMG M6H does more damage than the standard MA5D at the cost of fire rate. It has a 6 round magazine and 18 rounds in maximum reserve ammo.
 * The ADV M6H is more accurate than the default M6H.
 * The golden M6H has superior stats all around. It has an 8 round magazine and 40 rounds in maximum reserve.

Normal Gallery
 File:H4FUD-M6H-CAMS-FiringRange.jpg|A CAMS Cadet practices marksmanship with an M6H on the CAMS Firing Range. File:Innie - truce.png|An Insurrectionist holds aloft an M6H pistol in surrender. File:H4-Concept-M6HMagnumPistol.jpg|Concept art of the M6H. Note that it closely resembles the M6G from Halo: Reach. File:H4-Concept-M6HMagnumPistol-Final.jpg|Concept art of the final build of the M6H magnum pistol. File:H4-M6HMagnumPistol.png|The M6H in Halo 4. File:H4-M6HMagnumPistol-Infobox.jpg|Halo 4 Infobox. File:H4-M6HMagnumPistol-SideRender.png|An in-game side view of the M6H in Halo 4. File:H4-Specialization-Rogue.png|A Spartan-IV wielding an M6H. File:H4-MasterChief-M6H-Campaign.jpg|John-117 wielding an M6H against Covenant forces. File:H4-MP-M6HMagnumPistol-Scope.jpg|A view through the M6H magnum's scope. File:H4-Exile-2.jpg|The M6H being wielded in a Capture the Flag game on Exile. File:M6H Magnum.png|HUD icon of the M6H in Halo 4. File:H4-CmdrPalmer-DoublePistols.jpg|Commander Sarah Palmer wielding a pair of M6H sidearms. File:Magnum1.jpg|A Spartan chambering a round in her M6H on Complex. File:Magnumhud.jpeg|A render of the magnum scope. File:Nightfall - Disregarding Safety.jpg|Michael Horrigan with an M6H in Halo: Nightfall. File:HtT-JohnaimingatLocke.png|John-117 aiming an M6H at Jameson Locke in The Cost. File:H5GB-M6H2HUD.png|First-person view of the M6H2 in the Halo 5: Guardians Multiplayer Beta on Truth. File:Halo 5 - Smart Scope Pistol.png|Smart scope with the M6H2 in the Halo 5: Guardians Multiplayer Beta on Crossfire. File:H5G-M6H2HUD.png|First-person view of the M6H2 in Halo 5: Guardians on Fathom. File:H5G-M6H2zoom.png|Smart scope with the M6H2 in Halo 5: Guardians. File:H5G-M6H2friendship.png|Holly Tanaka handing an M6H2 to Olympia Vale during the Battle of Kamchatka. File:H5G-M6H2model.jpg|Models of the M6H2 for Halo 5: Guardians. File:H5G-Unloaded Magnum.png|An unloaded M6H2 with its smart link module detached. Note the gas piston and bolt head. File:H5G-Atlas&M6H2.jpg|An Atlas-clad Spartan-IV using an M6H2 on Riptide. File:HO-M6H.png|The M6H in Halo Online. File:HO-M6H1.jpg|First-person view of the M6H on Riverworld. File:HO-M6C.png|A early version of an "R" type M6H in Halo Online 

Videos
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List of appearances

 * Halo 4: Forward Unto Dawn
 * Halo 4
 * Spartan Ops
 * Halo: Spartan Assault
 * Halo: Initiation
 * Halo: Escalation
 * Halo: Nightfall
 * Hunt the Truth
 * All Hail
 * The Cost
 * Halo: Spartan Strike
 * Halo 5: Guardians
 * Halo Online