The absolute best attachments for the Osprey sniper rifle focus entirely on bullet velocity, stealth, and weapon handling (specifically equip speed). Because the Osprey is a single-shot, bolt-action rifle that forces you to completely exit your aim-down-sights (ADS) view to rechamber after every single shot, stats like recoil control, recovery time, and dispersion reduction are completely useless. If the rifle kicked up 20 feet into the air after firing, it wouldn’t change your performance at all because the animation forces an un-scope and re-scope anyway.

The Meta Long-Range Build
The standard meta setup maximizes your effectiveness when picking off moving target squads or farming flying Arcs from extreme distances:

Muzzle: Extended Barrel
This increases your base bullet velocity by a massive 25%. In practical terms, when you are trying to lead a target or snap onto a flying Snitch from 400+ meters across the map, higher velocity means your bullet reaches the target significantly faster, removing the awkward guesswork of leading your shots.

Stock: Lightweight Stock
This increases your weapon snappiness by boosting ADS speed by 200% and reducing weapon swap times. While community testing shows that the 200% ADS buff doesn’t fully speed up the heavy scope-in visual animation, the drastically lowered weapon equip and un-equip times are the real prize. If a player sneaks up on you while you are tunneling through your scope, this stock allows you to instantly swap to a close-quarters secondary like the Bobcat or Canto before they can finish you off.

Magazine: Extended Medium Mag III
Don’t confuse this with the weapon’s chambering. The Osprey will always require a manual chamber pull between individual shots. However, running a Mag III ensures you have more total rounds sitting in the ready pool before you are forced into the long, vulnerable manual reload animation where your character drops entirely out of the fight.

Underbarrel: Leave Empty (or any Tier II grip for aesthetics)
Standard grips in the game serve to mitigate horizontal or vertical recoil during sustained, continuous automatic fire. Because the Osprey resets completely between its single-shot cycles, allocating rare parts here yields zero actual statistical benefits.

The Stealth “Trial Farmer” Alternative
If you are running solo raids, focusing on trials, or trying to farm resources without drawing the attention of aggressive enemy player squads, you should immediately switch your front-end modification:

Muzzle: Silencer III
The Silencer III suppresses gun noise completely. While it offers no advantage in a face-to-face chaotic firefight where players already see you, it allows you to safely pick off high-tier robotic threats from deep cover without broadcasting your exact positioning to the entire lobby.

When you are gearing up for high-risk extraction runs, having the foundational schematic ready in your inventory makes a massive difference. For players who want to jump straight into modifying their kit without spending hours grinding out RNG drops, you can head over to a trusted marketplace like U4N to handle your weapon progression. It is a quick way to buy arc raiders blueprints lowest price so you can craft your optimal long-range loadout without clearing out your entire stash of materials.

Attachments to Strictly Avoid
Stable Stock / Padded Stock: These modifications are designed to accelerate your reticle reset and recoil recovery rate. Because you naturally un-scope after every shot to pull the bolt back, these stats provide 0% functional utility while actively penalizing your weapon swap speed by making the gun heavier to pull out.

Compensators & Muzzle Brakes: These are engineered to decrease per-shot and max-shot dispersion windows during continuous automatic sprays (keeping your bullets close to the center crosshair). They offer absolutely nothing to a single-fire bolt-action system and will only waste your valuable resources.