5KU B-18 RIS Mount
Looking for a low-profile and solid RIS mount for your red dot sight that installs directly onto the rear sight base on your AKS-74U bolt cover? Need a lightweight CNC-machined aluminum mount that enhances your aiming performance without adding extra bulk? The 5KU B-18 RIS mount is a faithful replica of the ZenitCo B-18 design, specifically adapted for airsoft versions of the AKS-74U. It mounts to the rear sight base on the bolt cover using the included screws, providing a stable RIS platform for compact optics such as red dot sights. Its 80 mm length offers enough support for most sights while maintaining a low and sleek profile above the receiver. Made from CNC aluminum, it achieves an excellent balance between strength and weight. Designed to fit most AKS-74U replicas, though the manufacturer does not provide a precise compatibility chart — we recommend checking your replica’s dust cover dimensions before installation.

Key Features

CNC precision:Accurately machined for perfect fit and long-term reliability.
Lightweight construction:Aluminum body weighing just 50 g ensures minimal impact on rifle balance.
Low profile:Compact 80 mm length keeps the rifle slim and maneuverable.
Easy installation:Mounts onto the rear sight base of the AKS-74U dust cover using included screws.
ZenitCo B-18 replica design:Tested and proven layout for stable optic mounting.

Technical Specifications

Material: CNC aluminum
Length: 80 mm
Weight: 50 g
Color: Black
Intended for: Rear sight base on AKS-74U bolt cover (airsoft replicas)
Compatibility: Fits most AKS-74U replicas

Package Includes

5KU B-18 RIS Mount (80 mm)

5KU B-18 AKS-74U Rear Sight RIS Rail Mount – Black