X-58 Nyx

Official launch specifications

Class	SMG
Loadout slot	primary
Player unlock level	46
Weapon levels	53
Magazine	40 rounds
Reserve	120 rounds
Fire rate	800 RPM

Attachments and Apex

Up to five standard attachment slots can be used. Compatible slot types: Optic, Muzzle, Barrel, Underbarrel, Magazine, Rear grip, Stock, Laser, Ammunition.

The separate X-58 Void Apex blocks Barrel, Ammunition. The planner clears incompatible choices when it is equipped.

Community stock measurements

Tested 2026-11-01 by RankKD. These can differ from the launch specifications above. Ratings such as Damage are Gunsmith interface ratings, not health damage. Later patches may change values.

Measurement	Stock
Damage	26 rating
Range	29 rating
Accuracy	49 rating
Mobility	68 rating
Handling	68 rating
Fire rate	800 RPM
Magazine	40 rounds
Aim down sight	255 ms
Sprint to fire	110 ms
Reload	2,767 ms
Movement	4.74 m/s
ADS movement	3.26 m/s
Sprint	6.27 m/s
Bullet velocity	450 m/s
Horizontal recoil	10.5
Vertical recoil	36

Recorded attachment options

Barrel

DOKSA 4F 305MM
EUNMIL 898 355MM
LX3-V 409MM
MUGI HYU-90 228MM

Underbarrel

FSS FIRELINE GRIP
FSS TAC90 GRIP
GW DOMI-9
MIRE-50 TAC GRIP

Magazine

60 ROUND MAG

Rear grip

BOK-980
MUGI O50-T GRIP
MUGI-X WRAP

Stock

GI MILSPEC STOCK
MC1 HARDTAIL
MUGI HUL-73.M STOCK
NO STOCK

Ammunition

5.8X21MM ARMOR PIERCING
5.8X21MM FRANGIBLE
5.8X21MM HOLLOW POINT
5.8X21MM OVERPRESSURED

Sources and coverage

Activision’s official launch weapon guide. Launch catalogue checked November 14, 2026. Read the full method and limits.