The Type-52 Particle Carbine, also known as the Covenant Particle Carbine or simply Particle Carbine, is a Covenant infantry firearm used by Jackals, Skirmishers, Elites and Brutes.

Overview & Background

The Particle Carbine is a battery-powered, directed energy weapon that served as a successor to the Type-51 Carbine near the end of the Human-Covenant War.

While it shares the same basic shape as its predecessor, the Particle Carbine fires ionized particles (in an identical nature to the Beam Rifle) instead of caseless radioactive projectiles. It features a rail-mounted screen with a holographic overlay that projects two meters: a battery charge meter represented by the coloration of the screen and a temperature meter represented by a colored meter on the holographic overlay, which rises from green to red as the weapon is fired. The weapon's only true drawback, a long cooldown period after overheating, can be circumvented by firing the weapon in a controlled manner.

It is most commonly seen in the hands of Jackal Sharpshooter Minors, but have also been seen carried by Elite Minors, Brute Followers, Skirmisher Minors, Elite Ultras and Brute Commanders.

Unstable Round Carbine

As of Halo SPV3.2, in the Lumoria campaign, a unique Sangheili Admiral, Lor' Darram, is encountered. He wields the one-of-a-kind Unstable Round Carbine, a custom Carbine that fires projectiles from a magazine, reminiscent of the Type-51 Carbine from the main Halo series.

The weapon is more powerful though, since it's rounds are explosive, but it is inferior to the Particle Carbine in other ways, being a slightly inaccurate weapon, its rate of fire is slower and it fires low velocity rounds. The rounds fired by this Carbine is green rather than the purple beams fired from a Particle Carbine. Due to its explosive nature, the Unstable Round Carbine therefore, acts like a high velocity Fuel Rod Cannon, albeit, with a smaller explosion.

While the Unstable Round Carbine can be wielded by the player, after being dropped by Darram after he has been killed, he is the final enemy in the mini campaign. Moreover, the Carbine is often half depleted and the full maximum ammo is unknown, with some rough estimations of around 20-30 rounds. Meaning the Carbine can only be used briefly to mop up his accompanying Covenant forces before the campaign ends, making it an elusive rifle and the rarest weapon in the entire game.

Gameplay Information



  • The Particle Carbine has exceptionally high accuracy which is maintained even with rapid, successive shots.
  • The Particle Carbine can fire as fast as the player can pull the trigger.
  • Unlike most precision and/or headshot-capable weapons, the Particle Carbine has increased effectiveness when used against energy shielding.
    • This makes the Particle Carbine extremely effective at taking out Elites (especially Honor Guards), Brutes with personal energy shields, Jackal/Skirmisher Point Defense Gauntlets, and stationary/vehicle mounted energy shields.

Unstable Round Carbine

  • Extremely powerful weapon; its high accuracy, 18 round magazine and explosive damage could easily fell most enemies in a few shots.
  • Explosion from the rounds could knockback enemies and stun them.
  • Quick squeeze of the trigger could cook nearby grenades due to the quantity of explosions.



  • The Particle Carbine deals exceptionally low damage to unshielded targets excluding headshots.
  • The Particle Carbine initiates a lengthy cooldown sequence if it overheats, disabling the weapon and leaving the user vulnerable to enemy fire.

Unstable Round Carbine

  • The weapon always starts off half depleted and, given this is literally the last new weapon you gain, it is literally impossible to fill up ammunition.
  • The rarest weapon in the game and could only be used against a few Jackals and Grunts, since they are the only enemy present, limiting the full potential of the carbine.
  • Overall less accurate and fires slower than the Particle Carbine.

Developer Information


  • The Particle Carbine is the only battery-powered weapon that can perform headshots.
    • It is also the only weapon in the Covenant arsenal that can perform headshots.
  • Until SPV3.1, the Particle Carbine's screen did not display any information regarding battery charge or heat build-up.
  • A similar weapon was set to appear in an official Halo game, titled "Halo Online." The weapon in question is the "Ammo Covenant Carbine", which is a variant of the Covenant Carbine that has had it's top-loading magazine system replaced with an internal battery. The official Halo Online was cancelled, but a playable mod version still exists.
  • Originally, the first-person design of the Particle Carbine's scope resembled that of the normal Carbine in mainstream Halo. However, with the update of SPV3 to SPV3.2, the Particle Carbine's scope was given its own design whilst the original scope was transplanted on the Unstable Round Carbine.
  • The Unstable Round Carbine's reload animation and function is the same as the Carbine found in official Halo games. The only difference is that its rounds are explosive.


vde Covenant infantry weapons in SPV3
Plasma Pistol (Brute variantVoid's Tear)Plasma Rifle (Brute variant • Modified Plasma Rifle)PiercerSpikerNeedlerShredderBrute ShotParticle Carbine (Unstable Round Carbine)Focus RifleHunter Cannon (BeamFuel RodShade)Energy SwordJackal ShieldPlasma GrenadeGravity GrenadeCluster GrenadeNeedle Grenade
Community content is available under CC-BY-SA unless otherwise noted.