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Annual Award Best Canon Expansion This article, M6I, written by Hyper Zergling, was voted as the Best Canon Expansion of 2016 in the Ninth Annual Halo Fanon Wikia Awards.


Terminal This article, M6I, was written by Hyper Zergling. Please do not edit this fiction without the writer's permission.
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80px-Halopediaicon-gradient.png This is a fanon expansion of a canon element. To see the original canon article, follow the link to Halopedia: M6I magnum.
M6I
M6L standard

Place of origin:

UEGSeal Unified Earth Government

Type:

Machine pistol

Service history

Used by:

UNSC Defense Force
UEG Law Enforcement

Wars:

Insurrection
Human-Covenant War
Post-Covenant War Conflicts

Production history

Manufacturer:

Misriah Armory

Variants:

See Variants

Specifications

Length:

228.6 mm (9.00 in)

Barrel length:

90.9 mm (3.58 in)

Cartridge:

  • 11.5×34mm
  • 8.3×38mm
  • Action:

    Short recoil

    Rate of fire:

  • 600 rpm (M6I, M6I/U)
  • 1200 rpm (M6I/B, M6I/BU)
  • Muzzle velocity:

  • 500 m/s (11.5×34mm)
  • 1000 m/s (8.3×38mm SLAP)
  • 320 m/s (8.3×38mm Subsonic AP)
  • Effective range:

  • 50 meters (11.5×34mm, 8.3×38mm Subsonic AP)
  • 100 meters (8.3×38mm SLAP)
  • Feed system:

    Detachable box magazine:

  • 10 rounds
  • 20 rounds
  • [Source]

    The M6I is a selective fire machine pistol and is one of the Misriah Armory's M6 variants. The M6I itself has several variants, consisting of standard and up-sized models as well as models with different firing modes. The M6I is also chambered for the smaller, 11.5×34mm cartridge as opposed to the larger 12.7×40mm cartridge used in many other M6 variants, giving it slightly less power with the benefit of reduced recoil.

    Design details

    A selective fire pistol, the M6I possesses a selector switch allows the user to either fire semi-automatically or fully-automatically. The weapon typically uses 20-round double-stack magazines, but 10-round magazines are also available. Like the rest of the M6 series, the M6I is short recoil operated, using the recoil left by the previous shot to load the next round into the chamber. The barrel of the M6I is threaded, allowing the attaching of a suppressor. The M6I can also be fitted with various other attachments, such as tactical lights, smart-linked scopes, and detachable stocks.

    Ammunition

    10-9x33mm ammo variants
    Left to right: 12.7×40mm M225, 11.5×34mm SAP HE, 11.5×34mm HEC, 8.3×38mm SLAP, and 8.3×38mm subsonic AP
    Unlike many of the other pistols of the M6 series, the M6I is chambered for a smaller, less-powerful 11.5×34mm cartridge, as opposed to the 12.7×40mm cartridge. The 11.5×34mm is noticeably weaker than the 12.7×40mm, but possesses significantly less recoil, allowing the M6I to be more controllable in automatic fire. Regardless, as a magnum cartridge, the 11.5×34mm is quite powerful itself.

    Military cartridge variants

    SAP HE

    M6Is used by the UNSC Defense Force are most commonly loaded with semi-armor-piercing high-explosive (SAP HE) rounds. Each of these rounds possesses a hardened steel jacket and is filled with a stable explosive. The hard jacket enables the round to penetrate body armor and enter the target, but is structured to deform shortly after entering in order to prevent the round from exiting the body and causing accidental casualties on the other side of the target. The explosive is then ignited by a fuse, detonating the entire projectile inside the target's body, producing a devastating wound that is crippling if not outright lethal. Each SAP HE round is labeled with a yellow-painted tip.

    HEC

    Another, less common military cartridge variant is high-explosive concussive (HEC). Unlike the SAP HE round, the HEC only possesses a copper jacket with more explosive filling, which is detonated by an incendiary material at the tip that is first ignited by the round's impact. Instead of penetrating the surface and then exploding inside the target, an HEC round creates a larger explosion at the target's surface, releasing a shockwave that stuns and disorients the target, should he/she/it survive the shot. Combined with the high rate of fire of the M6I, HEC rounds are capable of pinning down heavier infantry such as elites and brutes. The explosion left by an HEC round also serves as a one-way tracer, revealing the location of shot placement while preventing the enemy from leading any projectile path back to the source. Inevitably, the HEC round is less lethal than the SAP HE round and is only effective in specific applications, warranting its relatively limited use in the UNSC Defense Force. An HEC round is labeled with a white-over-red-painted tip.

    8.3×38mm SLAP

    The 8.3×38mm SLAP is based on the 11.5×34mm necked down to accept a 8.3mm sabot encasing a 5mm Staballoy penetrator. The sabot allows for a smaller, lighter projectile in a relatively large cartridge, resulting in a significantly higher velocity and sectional density when fired. The dense, high-velocity projectile offers very effective armor penetration capabilities, exceeding those of the 7.62×51mm M118 FMJ AP and even the 9.5×40mm M634 HP SAP. Also due to its high velocity and light weight, the 8.3×38mm SLAP possesses a much flatter trajectory when fired, resulting in a greater effective range and better accuracy compared to those of more-standard rounds. Furthermore, Staballoy is pyrophoric, combusting easily at high temperatures. As a result, the 8.3×38mm SLAP is effective at destroying lightly-armored vehicles such as Warthogs and Ghosts; once it pierces plating, it can ignite fuel with the possibility of detonating the entire vehicle. As the cartridge possesses the same overall dimensions as those of the 11.5×34mm, the only adjustment to an M6I that would need to be made in order to accept the 8.3×38mm would be a simple barrel swap.

    8.3×38mm Subsonic AP

    The 8.3×38mm Subsonic AP is intended specifically to be used in conjunction with suppressors in order to generate as little sound as possible when fired. With the projectile traveling at less than the speed of sound, no sonic "crack" is produced. In order to compensate for the substantially lower velocity, the subsonic projectile is larger and heavier than that of the SLAP cartridge, and instead consists of a dense tungsten core jacketed in cupronickel with no sabot. No amount of mass, however, can fully make up for the relative lack of speed of the Subsonic AP round when compared to that of the SLAP round; the Subsonic AP cartridge, therefore, possesses inferior armor penetration and wounding capabilities than those of the SLAP. Like the 8.3×38mm SLAP, the 8.3×38mm Subsonic AP possesses the same overall dimensions as those of the 11.5×34mm, so the only adjustment to an M6I that would need to be made in order to accept the cartridge would be a barrel change.

    Variants

    The M6I is available in a few additional configurations, each with a distinct model name.

    M6I/U (U—"up-sized")

    M6L US
    An M6I/U
    The M6I/U is a larger, up-sized variant of the M6I, possessing a longer grip, allowing it fit in the hands of a SPARTAN wearing MJOLNIR armor. The weapon performs exactly the same as the standard variant does otherwise.

    M6I/B (B—"burst")

    Unlike the standard M6I and the M6I/U, the M6I/B has a five-shot burst mode in place of the fully-automatic function.

    M6I/BU (BU—"burst, up-sized")

    The M6I/BU is the up-sized variant of the M6I/B. Like the M6I/US is to the standard M6I, the only difference an M6I/BU has from an M6I/B is a longer grip that enables the former to be wielded by a SPARTAN wearing MJOLNIR armor.

    Trivia

    • There are several notable users of the M6I.
      • Dom-094 often used a customized M6I/B as his sidearm. Throughout most of his career, his customized M6I/B was rebarreled for 8.3×38mm rounds, and was attached with a suppressor, a smart-linked red dot sight, and a tactical light.
        • However, starting October 2558, Dom-094 began using an M6I/BU loaded instead with HEC rounds, and fitted it with a different set of attachments consisting of a muzzle brake and a VnSLS/V 6E scope.
      • Fred-G068's sidearm of choice is a customized M6I/U fitted with with a smart scope and a tactical light. Fred-G068 carries a detachable stock separately, and may or may not attach it to his M6I/U, depending on the situation.
      • Alex Oxley uses an M6I/U rebarreled for 8.3×38mm rounds as his sidearm. His M6I/U is fitted with a suppressor, a KFA-2 x2 sight and a detachable stock.
      • Lloyd Harris uses an M6I/U as his sidearm.
      • Reginald Harding carried a pair of M6I/Us from the last year of the Human-Covenant War and onward.
    • I consider the UNSC's 12.7×40mm analogous to the present-day .45 ACP, the former of which is a large, standard-issue handgun cartridge, and the latter of which is a relatively large handgun cartridge that is standard-issue in many modern militaries. I decided to make up a handgun cartridge for the UNSC that would be analogous to the smaller, present-day 9×19mm Parabellum. I settled on basing the dimensions of the cartridge off those of the real-world .454 Casull, as the 12.7×40mm’s dimensions are very similar to those the real-world .500 S&W Magnum. In terms of dimensions, the 11.5×34mm differs from the .454 Casull in that its case is 34mm long as opposed to being 35mm in length, very much like how the 12.7×40mm’s case is 1 mm shorter than the .500 S&W Magnum’s. Another difference between the M6I's 11.5×34mm and the .454 Casull is that the former is rimless while the latter is rimmed.
    • The properties of the 8.3×38mm SLAP cartridge is based on those of the 6.5×25mm CBJ Ball cartridge, which can allegedly pierce armor more effectively than the 7.62×51mm NATO (likely M80 FMJ) can.

    Gallery

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