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{{ | {{Era|UNSC|HCW|Post}} | ||
{{Weapon infobox | {{Weapon infobox | ||
| image=[[File:Stanchion.jpg]] | | image=[[File:Stanchion.jpg]] | ||
| name=M99 Special Application Scoped Rifle | | name=M99 Special Application Scoped Rifle | ||
| manufacturer= | | manufacturer= | ||
| model= | | model= | ||
| type= Magnetic anti-matériel [[rifle]] | | type= Magnetic anti-matériel [[rifle]] | ||
| cost= | | cost= | ||
| length= (o/a): {{Convert| | | length= (o/a): {{Convert|68.90|in|cm}} | ||
| weight= {{Convert|20.0|kg|lb | | weight= {{Convert|20.0|kg|lb}} | ||
| damage per hit= | | damage per hit= | ||
| feed=10 rounds | | feed=10 rounds | ||
| ammotype=5.4mm/.21 caliber | | ammotype=5.4mm/.21 caliber | ||
| operation=Semi-automatic | | operation=Semi-automatic | ||
| velocity=15,000 meters/second (9.3 miles/second) | | velocity=15,000 meters/second (9.3 miles/second) | ||
| rate= | | rate= | ||
| range= {{Convert| | | range= {{Convert|4.5|km|mi}}{{Ref/Reuse|HGN122}} | ||
| service=[[Insurrection]] | | service=[[Insurrection]] | ||
<br>[[Human-Covenant War]] | <br>[[Human-Covenant War]] | ||
| Line 22: | Line 22: | ||
| 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. | 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 name="HGN122">'''Halo Graphic Novel''', ''Page 122''</ref><ref name="CH">'''Halo: Contact Harvest''', ''page 16''</ref> | ||
==Design and development== | ==Design and development== | ||
===Design details=== | ===Design details=== | ||
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> | 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> 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}} | ||
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}} | 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}} | ||
===Ammunition=== | ===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 | 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. 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. | ||
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. | 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. | ||
===Development and service history=== | ===Development and service history=== | ||
The M99 Special Application Scoped Rifle entered production in [[2491]].{{Ref/Reuse|HGN122}} Production was ceased 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> | |||
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 | 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 an attempt to capture the [[Covenant frigate]] ''[[Radiant Arrow]]''.<ref name="HSS2">'''[[Halo: Silent Storm]]''', ''Chapter 2''</ref> | ||
Shortly after the [[Subjugation of Earth]] | 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> [[Snipers]] assigned to the {{UNSCShip|Spirit of Fire}} continued to use the Stanchion as late as April [[2559]], as the ship had been lost in space for [[2531#Febuary|the past 28 years]].<ref>'''[[Halo Wars 2]]'''</ref> | ||
==Variants== | ==Variants== | ||
*'''[[M99A2S3 Stanchion]]''': The M99A2S3 is a variant of the M99 | *'''[[M99A2S3 Stanchion]]''': The M99A2S3 is a variant of the M99 created by [[Isabel]].<ref>[https://twitter.com/JeremyCook3D/status/950541458829844480 '''Twitter''' ''- Jeremy Cook M99A2S3 breakdown'']</ref> It has an inertia buffer that helps manage recoil.<ref>[https://twitter.com/JeremyCook3D/status/950592593376628741 '''Twitter''' ''- Jeremy Cook on the inertia buffer'']</ref> | ||
<gallery> | <gallery> | ||
File:M99 Stanchion.png|The M99A2S3 variant. | File:M99 Stanchion.png|The M99A2S3 variant. | ||
| Line 49: | Line 49: | ||
File:HW2Jeremy-cook-hw2-stanchion-orthos-2.jpg|M99A2S3 breakdown. | File:HW2Jeremy-cook-hw2-stanchion-orthos-2.jpg|M99A2S3 breakdown. | ||
</gallery> | </gallery> | ||
==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. | *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. | ||
*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. | *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. | ||
==List of appearances== | ==List of appearances== | ||
| Line 72: | Line 61: | ||
*''[[Halo: Bad Blood]]'' | *''[[Halo: Bad Blood]]'' | ||
*''[[Halo: Silent Storm]]'' | *''[[Halo: Silent Storm]]'' | ||
==Sources== | ==Sources== | ||
{{Ref/Sources}} | {{Ref/Sources}} | ||
