C90-CR-BK (M3.5)

Also known as

C90-CR-BK
C90BK

The C90-CR-BK (M3.5) is Instalaza's 90 mm anti-bunker munition for the C90-CR disposable launcher family. Instalaza lists it at 5.4 kg in transport configuration, 300 m effective range against area targets, and 300 mm concrete penetration for follow-through inside fortified positions.

C90-CR-BK (M3.5), 90 mm anti-bunker munition, Munitions

Image source: C90-CR (M3.5) Weapon System

Profile / Specs

Profile

Origin: Spain
Built by: Instalaza S.A.
Type: 90 mm anti-bunker munition
Service note: Modern C90-family ammunition

munitionbunker buster90 mm

Specifications

Caliber: 90 mm
Type: Anti-bunker munition
Weight: 5.4 kg (transport configuration)
Effective range: 300 m against area targets
Penetration: 300 mm concrete
Fragments: > 400 inside the bunker
Launcher compatibility: C90-CR (M3.5)

Variants

C90-CR-RB (M3.5) anti-tank
C90-CR-AM (M3.5) dual-purpose
C90-CR-FIM (M3.5) smoke

Compatible Launchers

Instalaza lists C90-CR-BK (M3.5) as a munition in the C90-CR weapon system.

Compatible item

Item type

Compatibility evidence

Instalaza C-90 / C90-CR, Disposable 90 mm shoulder-fired rocket launcher, Infantry Weapons

Instalaza C-90 / C90-CR

Disposable 90 mm launcher

Instalaza's C90-CR (M3.5) page lists C90-CR-BK (M3.5) as the anti-bunker munition in the C90 family.

Sources: C90-CR (M3.5) Weapon System

Documented Specifications

Instalaza lists this load as the anti-bunker option in the C90-CR family, with transport weight, range, penetration, and fragment figures shown below.

Spec	Value	Notes
Weight	5.4 kg	Transport configuration.
Effective range	300 m	Area target.
Penetration	140 mm armour steel; 300 mm concrete	Concrete figure is listed for second-warhead follow-through.
Fragments	> 400	Inside the bunker.

Service And Conflict Use

Service History

In service: Listed by Instalaza as the anti-bunker munition variant for the C90-CR weapon system.

Media

C90-CR-BK (M3.5) Images

C90-CR-BK (M3.5), 90 mm anti-bunker munition, Munitions - view 1 — Source: C90-CR (M3.5) Weapon System

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Sources

C90-CR (M3.5) Weapon SystemPublisher: Instalaza S.A. | Note: Supports the C90-CR-BK (M3.5) designation, anti-bunker role, launcher compatibility, transport weight, effective range, penetration, fragment figures, and official product imagery. | Accessed: 2026-06-27