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The subject of this article appears in Call of Duty: Black Ops Cold War The subject of this article appeared in Zombies mode
"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
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