- "Reinforced by a continuous carbon fiber filament. Improves muzzle velocity and damage range."
- — Gunsmith description
The GRU Composite barrel is a unique attachment available for the Groza in Call of Duty: Black Ops Cold War. It gives increased damage range and bullet velocity.
Effects[]
| Weapon | Length | Unlock Level | Stats |
|---|---|---|---|
| Groza | 16.2" | Weapon Level 30 | + 25% Effective Damage Range + 25% Bullet Velocity |