Aluminium Inner Barrel 113mm | Hi-Capa | Dr. Black

Dr. Black Aluminium Inner Barrel 113mm – for your replica

This inner barrel is the heart of your Hi-Capa's firing mechanism. As the BB moves through the barrel, the diameter and smoothness of the inner wall determine how consistent your shots are. With a 6.01mm bore, this barrel offers less space for the BB to move, resulting in a more stable trajectory. You replace your inner barrel when you seek greater shot consistency or when your current barrel shows signs of wear. An airsoft inner barrel upgrade is often the first step for players looking to refine their Hi-Capa.

Technical specifications

The barrel is CNC-machined from 6063 aluminium with a black anodised finish. With a length of 113mm and a 6.01mm bore, this barrel is specifically designed for Hi-Capa 5.1 models. The aluminium construction makes the barrel lighter than steel variants, while the anodising provides protection against corrosion. The barrel comes with a hop-up bucking that can be installed directly.

Compatibility and application

This inner barrel is developed for Hi-Capa 5.1 Gas Blow Back (GBB) pistols. The 113mm length matches the standard barrel length of Tokyo Marui Hi-Capa 5.1 models. Installation requires basic knowledge of your replica's hop-up unit and barrel assembly. You will need to disassemble the slide and remove the hop-up unit to access the barrel. This upgrade is suitable for both standard and advanced Hi-Capa builds.

Ready to add the Dr. Black Aluminium Inner Barrel 113mm to your setup?