CNC Lower Handguard B-30 for AK
Looking for a durable and lightweight handguard to replace your original polymer one while adding a full-length 20 mm RIS rail for accessories? Need a part that’s precision CNC-machined and fits standard AK / AKM rifles? Want a long version handguard that gives you extra mounting space while maintaining perfect balance? Then the CNC B-30 lower handguard from 5KU is the right choice. The B-30 long variant is designed for classic AK / AKM replicas (not suitable for short AK-74U models). Thanks to precise CNC machining, it fits tightly on the rifle body and provides a sturdy base for mounting accessories. The integrated 20 mm RIS rails at 3, 6, and 9 o’clock allow for grips, bipods, lights, and other tactical gear. The lightweight aluminum body reduces overall weight compared to steel parts while keeping the rifle balanced — perfect for modern AK builds. The B-30 is also compatible with B-31C or ZB-31C upper handguards.

The ZB-31C upper handguard shown is for illustration only (sold separately).

Key Features

CNC-Machined Aluminum:Precision-engineered for perfect fit and durability.
Integrated 20 mm RIS Rails:Standard RIS interface for grips and tactical accessories.
Long Variant:Extended handguard providing more mounting space than the original.
Lightweight Design:Only 260 g with high structural strength.
Front Sight Compatibility:Fits standard AK front assemblies; not suitable for AK-74U or compact models.
Universal Upgrade:Ideal for AEG AK/AKM replicas aiming for a modernized look.

Technical Specifications

Designed for: AK / AKM (long variant)
Dimensions: 255 × 53 × 38 mm
Weight: 260 g
Material: CNC-machined aluminum

Package Includes

CNC Lower Handguard B-30 for AK

5KU B-30 CNC Handguard for AK, Long – Black