When it comes to weapons, you want to have all the accessories to make them work flawlessly. WhileOnce Human’sweapon customization isn’t on par withEscape From Tarkov, where you can have many attachments, they serve their purpose well.
Additional optics, tactics, and sights improve the overall weapon ergonomics, and you’re able to fine-tune the weapon according to your preferences.

That said, many people hunt for Legendary attachments in the game to increase their weapons' accuracy, range, and magazine capacity.
With over 50 accessories in the game, here arethe must-have Top 15Once HumanWeapon accessoriesyou can use in the PvE scenarios.

Having these accessories will provide major ergonomic features for your weapons, and they should be prioritized above other weapon accessories.
15Small Brake
Weapon Series
How To Get
Interact with the Mysterious painting at (5432,-5970) to get the Treasure map
Coordinates
The loot crate is near (5749,-6823)
The only exception to the Legendary list is that the attachment provides decent accuracy for SMGs, which none of theLegendary SMGattachments provide.

The accessory is suitable for Assault Rifles and SMGs. It helpstighten the bullet spreadand hit enemies with greater accuracy. You can hit long-range targets without missing bullets.
The higher the accuracy, the tighter the bullet spread. Thus increasing the overall damage.

14Extended Pistol Mag
Magazine Capacity
Activate the Strange Door puzzle and go through the Blue door
(3979,121)

I highly recommend using more bullets on Pistols as they have unique effects. The Jaws and Wildfire pistols are the go-to options for clearing both PvP and PvE content.
SinceJaws can stagger enemies, it’s suggested to go with an extended magazine rather than a quick one. You won’t want to reload in a PvP fight.
More bullets mean more damage, which is the go-to option for almost all the weapons in the game.
13Extended Brake
Shoot the flying Eyeballoons consecutively until you see a loot crate
(2843,-2500)
A versatile accessory that can be equipped with Shotguns, Assault Rifles, and Light Machine Guns. I recommend controlling the recoil and focusing on buildingmore accuracy with this accessory.
Challenging content like LEA labs requires you to hit long-range targets, and having more accuracy will help you deal with critical shots.
I recommend practicing recoil control to counter less stability and invest more in accuracy and range.
12Tactical Laser Sight
DBSG/DB12/ACS12/S870
Aiming Speed
Turn to the right of the Extended Brake’s loot crate’s location and burn the veins with a Molotov
My most used accessory on Shotguns, SMGs, Assault Rifles, Sniper Rifles, and Light Machine Guns. The +19 accuracy provides you with avery narrow bullet spreadthat can help you easily land critical headshots.
With a boost in the aiming speed, you’re able to quickly switch to the first person andland crucial shots in PvP and PvE fights.I highly recommend using this tactical accessory.
11Tactical Holographic Sight
Zoom level
Stand in the blue zone and try to align the broken billboard with your mouse’s camera movement until it has a blue outline
(6857,1860)
Anall-in-one, well-balanced accessoryfor your Shotguns, SMGs, Assault Rifles, and Light Machine Guns. If you’ve not decided which attribute you want to max out, using the holographic sight will serve as the perfect pitstop.
With a combination of Zoom level, Aiming Speed, Mobility, and Stability, you’re getting a little bit of everything.
Once Human: All Shiny Deviation Variations and Farming Locations
Are you hunting for Deviations? Get the better Shiny Deviations and Farm them before others in the Manibus scenario.
10Tactical Rifle Scope
Zoom Level
Go to (4740,-2139) and interact with the Devious painting to get the Treasure map
Chest Coordinates
(4534,-1108)
A good accessory for close combat weapons like Shotguns and SMGs. While you can use this on long-range weapons like LMGs and ARs, I recommend equipping this accessoryfor close-quarter encounters.
The ergonomic feel is compact; you can shred enemies to a piece by aiming down sights.
More range counters the damage fall-off that weapons experience after a certain distance.
9Precision Rifle Scope
You’ll find Strange statues facing inwards; stand on the empty spot to face inwards to spawn the Loot crate
(6811,-1283)
A close-to-mid-range accessory for Assault Rifles, Sniper Rifles, and Light Machine Guns. With scopes like this one, you mustmaintain the recoil controlin automatic weapons; otherwise, the bullets won’t hit the target.
The recoil is heavy in first-person view, so it’s advised to drag the mouse down a little bit. I advise using this accessory on Sniper Rifles instead of automatic weapons.
Once Human doesn’t have high recoil, unlike other FPS shooter games
8Extended Rifle Mag
Reload Speed
Light up the Lotus leaves near the riverbank in any order
(1817,-740)
More magazine capacity should always be prioritized. The magazines that decrease your recoil time aren’t much of an importance since havingmore ammunition increases your overall DPS.
You can use them in situations where you don’t have legendary accessories. However, besides that, go with extended magazines.
7Large Brake
Stand in the blue square zone to align the broken billboard to view the Blue outline
(2331,1341)
This is an amazing accessory for maxing out your weapon’s accessories. Itprovides the highest accuracyin Assault Rifles, Sniper Rifles, and Light Machine Guns. For long-range fights, the Large Brake will be your best friend.
You can aim at weak spots and shoot bullets without losing accuracy.
6Large LMG Drum Mag
Throw aMolotovat the veins surrounding the Loot crate
(5185,699)
With seasonal calibrations like the Overflow style, this accessory can boost the magazine size to 200 bullets or more. However, increasing the LMG reload speed doesn’t make much of a difference.
Having more magazine capacity is better than reload speed for LMGs. The bullet spread on LMGs is quite high, soI advise using an accessory that gives you moreaccuracy. Otherwise, you’ll be stuck in close-to-mid-range combat.
10 Best Once Human Armor Sets
Find out the best Armor sets that can enhance your Weapon damage in Once Human