ARC Raiders Arpeggio Guide: The Weapon Nobody Deserves

You found the Arpeggio burst rifle on the floor of a raid, fired three bursts into a wall, decided it was garbage, and swapped it for a Ferro. Congratulations. You are every other raider in Speranza. The Arpeggio does not reward curiosity: it rewards commitment, which is why the majority of the playerbase will never understand what this weapon is actually capable of doing. It is not forgiving. It does not hold your hand. It will not whisper sweet nothings while you miss every shot due to catastrophic bloom and a fire rate that feels borrowed from a bolt-action.

The cold truth: an unupgraded Arpeggio is, in fact, mediocre. ARC Raiders weapon upgrades are not optional flavor on this gun: they are the entire premise. Picking up a base-level Arpeggio and expecting to delete squads is like buying a racecar and complaining that it needs fuel. According to community testing, a Rank 4 Arpeggio with full recoil reduction mods plays like a laser rifle at mid-range, outperforming the Torrente in the distance band where the latter falls apart from spread. Below Rank 3? It is genuinely not worth your medium ammo.

If you run this weapon below Level 4, you deserve exactly the experience you are having. There is no argument here. There is only consequence.

Level 4 or Go Home

The Arpeggio best build ARC Raiders starts at one place and one place only: the Gunsmith bench, Rank 4. The base weapon has three problems that would embarrass most firearms: punishing bloom under sustained fire, a reload time that qualifies as geological, and a fire rate so sluggish it borders on philosophical. Level 4 addresses two of these with surgical precision and no apology. You receive a 60% fire rate increase: turning the burst from leisurely to punishing: and a 50% reduced reload speed, which means you spend less time staring at a reload animation and more time making enemies reconsider their extraction route.

The bloom, however, does not fix itself. That is your job. The weapon demands participation.

The Arpeggio attachments guide has a clear hierarchy. Deviate from it at your own expense. The weapon occupies four attachment slots: muzzle, underbarrel, stock, and magazine: and it actually wants all four filled, which separates it from lazier loadouts. Boosting Ground's weapon analysis puts the priority order as: Compensator first, Vertical Grip second, Stock third, Magazine fourth. Do not improvise.

• Muzzle: Compensator III (Blue): The single most impactful attachment on this weapon. The Arpeggio's bloom during full-auto fire is genuinely harsh, and the Compensator reins it in with significant overall dispersion reduction. No other muzzle does what this does at this distance band. Do not substitute a Muzzle Brake here unless you are also bad at other games.
• Underbarrel: Vertical Grip: Unlike most weapons in this game, the Arpeggio's recoil is primarily vertical, not horizontal. This makes the Angled Grip the wrong choice and the Vertical Grip the correct one. The distinction matters and the community broadly ignores it.
• Stock: Stable Stock III (Blue): The Arpeggio fires in bursts with a gap between shots. The Stable Stock reduces Recoil Recovery Time, meaning your crosshair returns to center faster between each burst. This directly translates to faster follow-up shots landing where you aimed them rather than somewhere in the general direction of your target.
• Magazine: Green or Blue Extended Mag: Solo players can get away with a green magazine. Squad players will run dry during a three-player engagement and regret every financial decision that led them here. Blue extended mag for squads. Non-negotiable.

CONFIRMED BY TESTING

The Kinetic Converter is not worth running on the Arpeggio. The fire rate gain is negligible on this weapon compared to guns where it actually matters (Bobcat, Stitcher, Torrente). Save it for something that will notice.

How to Actually Shoot This Thing

Here is where the Arpeggio PvP tips diverge from "point gun, press trigger." The weapon has bloom: meaning your bullets spread progressively wider the more you fire: and managing that requires conscious intervention from the person holding the controller or mouse. You are not a passenger on this gun. You are its entire quality control department.

1. Crouch before your first shot. Crouching tightens the spread significantly, allowing your first burst to land with accuracy that the standing stance will not provide. This is not optional style. This is physics inside a video game taking pity on you.
2. Use a bloom-visible crosshair. Running a crosshair that shows you the actual size of your spread is not a crutch: it is information. Information that you apparently do not currently have, given how the gun has been performing in your hands.
3. Play mid-range, not close or far. The Arpeggio is a true mid-range weapon. At close range it is merely acceptable. At long range the burst spread makes it a lottery. In its actual lane, a fully kitted Rank 4 Arpeggio consistently pings head shots from aim-at-chest discipline, since the minor upkick works in your favor.
4. Control your follow-up bursts. Wait for the crosshair to reset between bursts. The Stable Stock reduces this time. Your impatience will still ruin it. The burst gap exists. Respect it or count your misses.

The Canter SMG Arpeggio loadout is currently the pairing of choice for mid-to-close range coverage. The Arpeggio handles everything at mid-range with efficiency; the Canter handles the things that get close enough to make the burst fire rhythm irrelevant. This is not a creative suggestion: it is a practical response to the Arpeggio's one real limitation: extraction shooter loadout building requires acknowledging what your primary weapon cannot do.

The logic is simple. Burst rifles at close range require a level of discipline under pressure that most players do not maintain. When someone pushes your position hard and fast, the ability to swap to a fast-firing SMG and not think about burst timing is worth more than stubbornness. The Arpeggio wins its fights. The Canter wins the fights the Arpeggio loses. Together they are an argument for not dying.