Editing BR55 battle rifle

{{Status|Canon}}

|manufacturer=[[Misriah Armory]]{{Ref/Book|Id=Enc22|Enc22|Page=168}}

|series=BR55

|variant=

|weight={{Convert|3.8|kg|lb}}{{Ref/Reuse|Enc11}}

|length={{Convert|89.9|cm|in}}{{Ref/Reuse|Enc11}}{{Ref/Reuse|Enc22}}{{Ref/Reuse|EVG}}

|ammotype=9.5×40mm [[M634 Experimental High-Powered Semi-Armor-Piercing]]{{Ref/Reuse|Enc22}}

|feed=36-round magazine{{Ref/Reuse|Enc22}}

|operation=[[wikipedia:Gas-operated#Short-stroke piston|Short-stroke piston]], [[wikipedia:Rotating bolt|rotating bolt]], [[wikipedia:Blowback (firearms)|locked breech]]

|range=900 meters{{Ref/Novel|Id=BR55DMR|HCH|Chapter=13}}{{Ref/Note|The ''Halo Encyclopedia: The Definitive Guide to the Halo Universe'' claims that the BR55 battle rifle has a maximum effective range of 200 meters. However, this figure is unlikely given that most 21st century rifles have an effective range far greater than 200 meters. As such, this article assumes that the BR55 has the same range as its prototype, the XBR55.}}

{{Quote|When nothing else gets the job done, the BR55 Battle Rifle will do.|''[[Halo Encyclopedia (2009 edition)|Halo Encyclopedia: The Definitive Guide to the Halo Universe]]''{{Ref/Reuse|Enc09}}{{Ref/Reuse|Enc11}}}}

The '''BR55 Service Rifle''' is an infantry [[battle rifle]] in service within the armed forces of the [[United Nations Space Command]].{{Ref/Reuse|Enc22}}{{Ref/Book|Id=EVG|EVG|Page=21}} Among UNSC service personnel, the BR55 has accumulated a number of nicknames including the "'''Monkey Wrench'''", "'''BR'''", and the "'''Big Boy'''".{{Ref/Book|Id=Enc09|Enc09|Page=305}}{{Ref/Book|Id=Enc11|Enc11|Page=318-319}} It is notable for its powerful three-round burst fire and accurate 2× scope, making it more efficient at farther ranges than the [[MA5 series|MA5 series assault rifles]].  

The BR55 Service Rifle is a gas-operated, magazine-fed, mid-to-long range weapon capable of three fire modes;{{Ref/Reuse|EVG}} semi-automatic,{{Ref/Reuse|Enc09}}{{Ref/Reuse|Enc11}} fully automatic,{{Ref/Novel|Oblv|Chapter=9}} and a three-round burst-fire.{{Ref/Game|Id=H2|H2|[[Battle Rifle]] in-game weapon}}{{Ref/Reuse|Enc09}}{{Ref/Reuse|Enc11}} The weapon is most commonly fired in the latter of these modes.{{Ref/Book|Id=H2M|Halo 2 manual|Page=10}}{{Ref/Book|Id=H2LEM|Halo 2 Limited Collector's Edition manual|Page=13}} The rifle has a bullpup layout, with a detachable 36-round box magazine loaded behind the grip and trigger, with a safety switch located above the handle. While serving to reduce the weapon's length, the rifled barrel of the weapon extends its total length to {{Convert|89.9|cm|in}}. It is typically equipped with a three-pronged [[Wikipedia:Flash suppressor|flash suppressor]], though this attachment can be swapped out for others such as a [[suppressor]].{{Ref/Level|HW2|Gatecrashers|Detail=Mission select artwork ([[:File:HW2-Odsts-1.jpg|File link]])}} As with the other weapons in [[Misriah Armory]]'s battle rifle line, the BR55 fires [[9.5x40mm]] [[M634 Experimental High-Powered Semi-Armor-Piercing|M634 HP-SAP]],{{Ref/Reuse|Enc22}} and 9.5x40mm SAP-HE.{{Ref/Reuse|EVG}}

The BR55 is fitted with an optics rail above the barrel, complete with a mounting point for a [[telescopic sight]]. By default, the weapon is equipped with a so-called (and retroactively-named) "[[classic sight]]",{{Ref/Game|H5G|List of REQ cards|REQ card|Detail=Halo 2 Battle Rifle description|Quote=BR with Classic Sight. Reliable firepower never goes out of style. Battle Rifle with full-screen zoom.}} capable of x2 magnification.{{Ref/Reuse|Enc22}}{{Ref/Reuse|H2M}}{{Ref/Reuse|H2LEM}} It features no iron sights.

Overall, the weapon is considered to have high accuracy and high rate-of-fire, leading it to be popular among UNSC service personnel.{{Ref/Reuse|Enc09}}{{Ref/Reuse|Enc11}}

 

===Usage===

While newly introduced into UNSC service at the onset of the [[Human-Covenant War]], the BR55 quickly came to dominate all aspects of the military - becoming an extremely popular rifle throughout most of the military's branches.{{Ref/Reuse|Enc22}} While formally designated a battle rifle, in practice the weapon fulfils the battlefield role of a [[Designated Marksman Rifle]],{{Ref/Reuse|BR55DMR}} and by [[2548]] had entirely eclipsed the pre-existing [[M392 DMR]] in all UNSC service except for the [[UNSC Army]]{{Ref/Reuse|EVG}} - with the [[BR55HB battle rifle|BR55HB]] upgrade fully-replacing it.{{Ref/Book|Id=EncDMR|Enc11|Page=316}}{{Ref/Site|Id=WPDMR|URL=http://halo.xbox.com/en-us/intel/featured/gallery/dmr/c0dfea7c-87fa-4224-82ff-c44d93b73f03|Site=Halo Waypoint|Page=DMR|LocalArchive=Archive:Halo_Waypoint/2009 to 2014/Universe/Weapons|D=21|M=08|Y=2011}}{{Ref/Book|Id=Enc22DMR|Enc22|Page=171}} Although the heavy barrel variant was an upgrade of the BR55, in practice the two operate almost identically.{{Ref/Reuse|EVG}}

 

 

While battle rifles began to see popularity throughout the UNSC beginning in the mid-2400s prior to the [[Insurrection]],{{Ref/Book|H4EVG|Page=61}} the BR55 did not enter service until the onset of the [[Human-Covenant War]] in [[2525]].{{Ref/Reuse|Enc22}} The weapon was prototyped as the [[XBR55 battle rifle]] around the time of the [[First Battle of Harvest]], and was in the hands of [[SPARTAN-II program|Spartan-II]] supersoldiers by December of that year.{{Ref/Comic|Id=HCD1|HCD|Issue=1}} During these early encounters with the [[Covenant]], BR55s also fell into the hands of [[Insurrectionist]]s of the [[United Rebel Front]].{{Ref/Reuse|HCD1}} As the war progressed, the battle rifle proved itself an extremely popular weapon particularly in the service of the [[UNSC Navy]] and [[UNSC Marine Corps|Marine Corps]], in which it all-but replaced the older M392 marksman rifles. By [[2548]], the introduction of the BR55's upgraded model the BR55HB fully-replaced the M392 DMR in all services except for the UNSC Army.{{Ref/Reuse|EncDMR}}{{Ref/Reuse|WPDMR}}{{Ref/Reuse|Enc22DMR}}

 

The BR55's popularity ultimately contributed to the design of its successor models, the [[BR75 battle rifle|BR75]] and [[BR85 battle rifle]]s.{{Ref/Reuse|Enc22}}{{Ref/Site|URL=https://www.halowaypoint.com/en-us/universe/weapons/battle-rifle|Site=Halo Waypoint|Page=Battle Rifle|D=14|M=06|Y=2021}}

The BR55 has reasonably high power, a decent rate of fire, and high accuracy with an electronic 2× telescopic sights attachment; it can be used to deliver three-round bursts at medium ranges. In [[multiplayer]], three body shots and one head shot will kill a fully shielded opponent, assuming the player does not have an overshield. This weapon will kill an unshielded enemy in a single head shot. Target the head and if you're within range a red dot will appear in your reticule. This requires that only one of the three rounds from a burst actually hit and kill an enemy. Therefore, it is possible to kill up to three unshielded opponents in a single burst if they are grouped close enough to each other, though this is an uncommon occurrence. However, right after you shoot, it is possible to only shoot one round rather than three bullets, with a melee attack to disrupt the burst. Against vehicles like the {{Pattern|Wuzum|Spectre}} or {{Pattern|Karo'etba|Ghost}}, an experienced player can easily take out the driver, rendering the vehicle immobile, however, this is harder with the Warthog.

At longer ranges, it is necessary to minimize strafing movements when firing to avoid "splintering" the shot grouping too much. Since each "shot" is actually a three-round burst, certain movements can break up your shot's grouping, and could greatly reduce accuracy. To avoid this, either swap it in for the Covenant Carbine, or get up to medium range. The Carbine has the same degree of firepower, and it lacks the splitting effect although it is slightly less accurate. This also affects accuracy when firing from a moving vehicle such as a [[M12 Force Application Vehicle|Warthog]] (especially when firing at a 90-degree angle from the vehicle's heading).  

*On the level ''[[Quarantine Zone]]'' in ''Halo 2'', the player can acquire a BR55 from a dead Marine that, when reloaded, can have a total of 236 spare rounds instead of the normal 108 spare rounds.

*The BR55 was featured in Bungie's 30th anniversary event as the solar pulse rifle BxR-55 Battler in ''Destiny 2''.

{{Linkbox|gallery=yes}}

File:Spartan with Battle Rifle2.jpg|John-117 wielding a BR55 aboard ''[[Cairo Station (station)|Cairo Station]]'' in ''[[Halo 2 announcement trailer]]''.

File:HW_FloodMarine_Concept.jpg|Concept art of a Flood combat form with a BR55 for ''[[Halo Wars]]''.

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