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| {{Status|Canon}} | | {{Era|HGN}} |
| {{Weapon infobox | | {{Weapon |
| | image=[[File:Stanchion.jpg]] | | | image=[[Image:Stanchion.jpg]] |
| | name=M99 Special Application Scoped Rifle | | | name=M99 Special Application Scoped Rifle |
| | manufacturer=[[HRN]]{{Ref/Twitter|Id=TweetHRN|Halo|1760798621631455323|Halo|Quote="Manufacturer: HRN" (From the video within the tweet.)|D=25|M=02|Y=2024}} | | | manufacturer= |
| | model= | | | model= |
| | type= Magnetic anti-matériel [[rifle]] | | | type= Sniper Rifle |
| | cost= | | | cost= |
| | length= (o/a): {{Convert|67|in|cm}}{{Ref/Reuse|Enc11}} | | | size=*Length (o/a): 1710mm |
| | weight= {{Convert|20.0|kg|lb}}{{Ref/Reuse|Enc11}}
| | *Weight (unloaded): 20.0kg |
| | damage per hit= | | | damage per hit= |
| | feed=10 rounds{{Ref/Reuse|Enc11}} | | | magazine=10 rounds |
| | ammotype=5.4mm/.21 caliber{{Ref/Reuse|Enc11}} | | | maxammo= |
| | operation=Semi-automatic | | | fire= |
| | velocity=15,000 meters/second (9.3 miles/second){{Ref/Reuse|Enc11}} | | | ammotype=5.4mm (.21 Caliber) |
| | rate= | | | operation= |
| | range= {{Convert|7.5|km|mi}}{{Ref/Reuse|Enc11}} | | | rate of fire=Semi-Automatic |
| | service=[[Insurrection]] | | | accuracy= |
| <br>[[Human-Covenant War]]
| | | range=4.5km (max killing range) |
| <br>[[Post-Covenant War conflicts]]
| | | era= |
| <br>[[Created conflict]]
| | | counterpart= |
| | | counterwep= |
| | affiliation=[[UNSC Marine Corps]] | | | affiliation=[[UNSC Marine Corps]] |
| }} | | }} |
| The '''M99 Special Application Scoped Rifle''', also referred to as the '''M99 Stanchion Gauss rifle''' or simply the '''Stanchion''', is a [[United Nations Space Command]] anti-matériel rifle.{{Ref/Book|Id=Enc11|Enc11|Page=324}}<ref name="HGN122" >'''Halo Graphic Novel''', ''Page 122''</ref><ref name="CH">'''Halo: Contact Harvest''', ''page 16''</ref> | | The '''M99 Special Application Scoped Rifle''', also known as the '''M99 Stanchion Gauss-rifle''' is a [[United Nations Space Command]] ground firearm. <ref>''[[Halo Graphic Novel Pg122]]''</ref> |
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| ==Design and development== | | ==Operational Use== |
| ===Design details===
| | It was used by [[Corporal]] [[Avery Johnson|Avery J. Johnson]] during [[Operation: KALEIDOSCOPE]] (a mission where he used an M99 SASR to assassinate [[Jerald Mulkey Ander]], a member of the [[Secessionist Union]]). It was also used during [[Operation: TREBUCHET]] by Johnson to stop the target at the [[Jim Dandy]]. |
| The M99 works on the same operational principles as other magnetic weapons such as [[mass driver]]s and [[Magnetic Accelerator Cannon]]s, albeit on a much smaller scale. This system works through using a series of electromagnetic coils (an asynchronous linear induction motor) rather than chemical propellants as a source of kinetic energy. The M99's weight and bulk limit the weapon's use to highly specialized long-range precision sniping roles.<ref>[https://www.halowaypoint.com/en-us/universe/weapons/railgun '''Halo Waypoint''': ''Railgun'']</ref>{{Verify source}} It is typically used in extreme-range sniping and anti-materiel roles, but the recoilless nature of the weapon makes it ideal for fighting in microgravity as it does not send the wielder into an uncontrollable spin, such as during boarding actions and [[Extra-vehicular activity|EVA]].{{Ref/Reuse|HSS2}}
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| The M99 can be used with a [[portable computer]] to provide the ballistic calculations necessary to engage long range targets. The rifle can also be integrated with other systems, such as [[ARGUS drone]]s for trajectory and ballistic data. The M99 also uses the [[ATLAS+]] system developed by [[Ohana Prescient Systems]].{{Ref/Reuse|HGN122}}
| | ==Caliber and Technology== |
| | | The M99 fires tungsten rounds which are of a small caliber, being only 5.4mm, or .21 caliber. The M99 negates this by not using chemical propellents but actually uses magnetic forces like the [[M68 Gauss Cannon]] or [[MAC]] to proppel the round incredible distances and incredibly fast. The rounds hit their target with an immense amount of kinetic energy as in Contact Harvest the round passes through a building and still has enough energy to blow the target apart. The weapon also appears to be able to use an input from a laptop for ballistic calculations. It can also interface with other targetting and ocmputer systems for trajectory calculations, such as [[ARGUS Drones]]. |
| ===Ammunition=== | |
| The 5.4mm/.21 caliber round is very small in comparison to most standard firearms of the era, but using the Gauss technology, the small rounds have the ability to rip targets apart, even through office buildings.{{Ref/Reuse|CHP}} This is due to the high force imparted on the round via the Gauss acceleration method. The round creates shockwaves as it passes through the target and ripping through anything not as strong as a foot (30 cm) of titanium. {{Ref/Reuse|Enc11}} In the case of material targets, this is a minor explosion and the creation of structural fractures. In the case of personnel targets, it simultaneously rips apart and pulverizes the body around the impact area. Even hits in an extremity or near-misses can be deadly. | |
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| The rounds have been known to have the ability to travel great distances without affecting the trajectory, delivering enough force to punch through [[instacrete]] pylons, blow a [[human]] apart, and continue on course through an abandoned parking lot.
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| ===Development and service history===
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| Developed by [[HRN]],{{Ref/Reuse|TweetHRN}} the M99 Special Application Scoped Rifle entered production in [[2491]], with production ceasing in [[2521]].{{Ref/Reuse|HGN122}} Though it was used mainly for anti-matériel operations, the .21 caliber round (with a muzzle velocity of 15,000 meters per second) proved very effective against "soft" targets such as personnel.<ref name="CHP">'''Halo: Contact Harvest''', ''Prologue''</ref>
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| In [[2502|March 2502]], then-[[Corporal]] [[Avery Johnson]] used an M99 Stanchion to [[Operation: KALEIDOSCOPE|assassinate]] [[Jerald Ander]], the leader of the [[Secessionist Union]] cell on [[Harvest]]. Johnson took the shot as the terrorist leader was driven by in an open-topped truck; Ander's head and upper torso were severed by the impact.{{Ref/Reuse|HGN122}} In [[2524]] during [[Operation: TREBUCHET]], Johnson used a Stanchion mounted on a shock-absorbing armature while flying in an [[AV-14 Hornet]], to kill an [[Insurrectionist]] terrorist driving a bomb-rigged truck; his first target was torn apart by the impact force. However, Johnson's second target detonated a bomb inside a [[Jim Dandy]] restaurant, killing herself, three [[UNSC Special Forces#Naval Special Warfare|Special Warfare]] Marines, and 38 civilians.{{Ref/Reuse|CH}}<ref>'''Halo: Contact Harvest''', ''page 86''</ref> Early on during the [[Human-Covenant War]] in March [[2526]] [[Blue Team]], [[Gold Team]], and [[Green Team]] utilized M99 Stanchions during [[Skirmish over Netherop|an attempt]] to capture the [[Covenant frigate]] ''[[Radiant Arrow]]''.<ref name="HSS2">'''[[Halo: Silent Storm]]''', ''Chapter 2''</ref>
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| Shortly after the [[Subjugation of Earth]], [[Spartan-IV]] [[Kojo Agu]] used an M99 Stanchion given to him by the [[United Rebel Front]] while on [[Cassidy III]] to destroy the [[data pad]] that the [[Created]] [[Smart AI]] [[Leonidas]] was stored in. Production of the rifle had since ceased and Agu considered the weapon to be "old-school." <ref name="HBB">'''[[Halo: Bad Blood]]'''</ref> As late as April [[2559]], [[snipers]] assigned to the {{UNSCShip|Spirit of Fire}} used the [[M99A2S3 Stanchion]],<ref>'''[[Halo Wars 2]]'''</ref> a variant of the weapon constructed on the ''Spirit of Fire'' using a design template created by the [[Smart AI]] [[Isabel]] and given the code "ISABEL-2558-01-00023."<ref>[https://twitter.com/JeremyCook3D/status/950541458829844480 '''Twitter''' ''- Jeremy Cook M99A2S3 breakdown'']</ref> During a mission on [[Arcadia]] in [[2560]], [[August-099]] of [[Omega Team]] was equipped with an M99A2S3 Stanchion.{{Ref/Novel|Id=Hippo|Halo: Hippocratica}}
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| ==Variants==
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| *'''[[M99A2S3 Stanchion]]''': The M99A2S3 is a variant of the M99 that has an inertia buffer that helps manage recoil.<ref>[https://twitter.com/JeremyCook3D/status/950592593376628741 '''Twitter''' ''- Jeremy Cook on the inertia buffer'']</ref>
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| <gallery>
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| File:M99 Stanchion.png|The M99A2S3 variant.
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| File:HW2 M99A253 Stanchion.jpg|M99A2S3 breakdown.
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| File:HW2Jeremy-cook-hw2-stanchion-orthos-2.jpg|M99A2S3 breakdown.
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| </gallery>
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| ==Gameplay==
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| {{Main|Sniper|Sniper Rifle}}
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| The weapon is used by [[Sniper]] units in ''[[Halo Wars 2]]'', once the Stanchion upgrade is obtained.{{Ref/Game|HW2|unit|Detail=Sniper}}
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| ==Trivia== | | ==Trivia== |
| *The M99 shares its designation with the real-life Barrett Model 99 single shot sniper rifle, a derivative of the Barrett M107A1 anti-materiél rifle. | | *It is also nicknamed the "Stanchion". |
| *In some sources the M99 is referred to as "recoilless" but it is not clear whether it is technically a "recoilless" weapon or if this is a mistaken designation. If it is "recoilless" the manner by which it counteracts recoil is not known, as modern day "recoilless rifles" either eject propellant gas or a "countershot" of material with equal mass as the projectile, but no source has ever mentioned either of these recoil countering mechanisms on the M99. If the M99 is "recoilless" it may be that it has some as-of-yet theoretical way to reduce recoil, perhaps involving magnetic fields. | | *Other than the description and picture of the rifle, nothing else is yet known about this weapon. |
| | *it is technically an anti-material weapon designed for eliminating bombs and other ordnance at a distance. |
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| ==Gallery== | | ==Related Articles== |
| <gallery>
| | *[[Halo Graphic Novel Pg122]] |
| File:HGN-P122-LogoStanchion.png|The logo for HRN, the M99 Stanchion's manufacturer.
| | *[[United Nations Space Command]] |
| File:AssassinAvery.png|Avery Johnson using an M99 Stanchion.
| | *[[SRS99C-S2 AM Sniper Rifle]] |
| File:HINF AugustOnArcadia.jpg|August-099 wielding an M99A2S3 Stanchion.
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| </gallery>
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| ==List of appearances== | | ==External Links== |
| *''[[Halo Graphic Novel]]'' | | *http://en.wikipedia.org/wiki/Stanchion |
| **''[[Halo Graphic Novel, Page 122|Page 122]]'' {{1st}}
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| *''[[Halo: Contact Harvest]]''
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| *''[[Halo Wars 2]]''
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| *''[[Halo: Bad Blood]]''
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| *''[[Halo: Silent Storm]]''
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| *''[[Halo Infinite]]''
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| *''[[Halo: Hippocratica]]''
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| ==Sources== | | ==Sources== |
| {{Ref/Sources}}
| | <references/> |
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| {{UNSC rifles}}
| | [[Category:UNSC]] |
| [[Category:Magnetic acceleration weapons]] | | [[Category:Weapons]] |
| | [[Category:Held Weapons]] |
| | [[Category:Human Weapons]] |
