Attachments

Attachments can be gained by using Weapon Upgrade Kits; up to four can be attached to a single weapon.

Using a Weapon Upgrade Kit gives a choice of 3 or more randomly-selected Attachments for the currently equipped weapon, along with a small boost to its damage (+5%). Attachments with a gold color are rare attachments, which have a low chance to appear as an additional choice in the given selection.

Ammo TP

15% chance to not consume ammo in the magazine.

Backup

Increases the maximum amount of spare ammo by 40% and grants slightly faster ejection speed. Also increases ammo gain for the weapon by 20%.

Backup Printer

Prints spare ammo (15% of magazine size) for every 50 heat generated, scaling with magazine size. Production then consumes 10 heat.

Barebone Allocator

Losing shields (or health if no shield) grants ammo regeneration for a duration. Multiple instances can stack.

Digitalizer

Bullets are directed towards the recoil center, and increasing overall accuracy and precision.

Dynamic Reflector

Bullets always ricochet from surfaces or gain one additional bounce. Increases armor penetration.

H-P Laser

Adds an aiming laser. Grants movement stabilization and passively reduces weapon deviation.

Hair Trigger

Converts semi-auto to full-auto, or full-auto/burst-fire to semi-auto.

Hyper Accelerator

Adds full bullet enemy penetration or increases penetration damage. Increases bullet velocity.

Impact CPU

Increases damage to structures and propers, and reduces enemy health regeneration by 50%.

Last Straw

Last shot in the magazine deals increased damage and inflicts either stun or burn (for each projectile); damage scales with magazine size.

Muzzle Compensator

Increases damage by 15%, but also increases deviation by 3° and recoil by 10%.

Offload Cycler Ultra

Burst fire weapons: Fully removes burst delay.
Sem/Full-Auto weapons: Reduces delay between shots.

Power Link 4x4 Pin

Grants a random bonus for a few seconds on successful active reload.

Reducer

Kills reduce running cooldowns for items by 1 second and slightly decreases weapon deviation.

Reload Vent

On ejecting, vent heat and return unspent ammunition to reserve. Passively reduces heat generation.

Short Magazine Spring

Increases magazine capacity. Can only be reloaded when empty.

Silver Bullet Alloy

Increases damage against Elite enemies and Bosses by 2% for each 100 maximum health and bullets take down one additional plating.

Tac Grip

Reduces recoil when standing still, but no effect whilst moving. Passively reduces weapon recoil in addition.

Titanium Rifling

Removes damage falloff over distance or increases distance damage increase. Increases maximum travel distance.

Twin Link

12% chance to fire an extra projectile at no ammo cost.

Vital Data Collector

Every 4 kills grants +25 max health, until +400 max health has been gained.

Ammo TP MkII

20% chance to not consume ammo in the magazine.

Cranial Targeting CPU

Deal 100% increased headshot damage but lose 30% damage overall, powering the device costs 10 shields per shot.

Directional Disperser

Converts the weapon for run-and-gun use, strongly increasing deviation, movement stability, and damage.

Eternium Amalgam

Replaces vital weapon parts with a heavy Eternium metal mixture, strongly increasing weapon performance but reduces movement speed nearly to a halt when held.

Eraser Cell

Enemies killed whilst holding the weapon spawn red orbs that each grant 2 ammo directly to the non-empty magazine, 50 shield, and 5 heat.

Hotswap

Unlocks all ammo types for all weapons and allows switching of ammo types without ejecting first. Switching ammo types generates 15 heat.

Super Heavy Compound

Bullets are extremely heavy, deal 40% more damage but slightly reduce movement speed and have 30% reduced range with strong damage falloff over distance.

Tri-Bolt-Carrier

Decreases firerate and damage by 30% but fires 2 additional pellets per shot while tripling ammo cost. Increases minimum heat by 10.

Multiplier

40% chance to gain double ammo from pickups. Switches the weapon to a rapid fire 5-round burst. Burst weapons gain 3 extra shots per burst.

Lucky Dangle

Kills grant permanent +0.25 luck, stacking up to 400 times. 5% chance to deal 200% damage, can crit.

Wormhole Mags

Increases magazine size by 30%. Headshots return 1 ammo directly to spare ammo.

Trivia

The digital screen on the Digitalizer upgrade displays the word 'SHRIKE', the screen name of one of the developers.