6.03 Inner Barrel | 97mm | GBB | TTI

6.03 Inner Barrel 97mm TTI – inner barrel for your replica

This inner barrel is the heart of your hop-up system in GBBR pistols. The 6.03mm bore provides a tighter tolerance between BB and barrel wall, which optimises the airflow around the BB. You replace an inner barrel when you want more consistency in your shots, or when the barrel is damaged or dirty. For Umarex and Tokyo Marui G17/18 replicas, this airsoft inner barrel offers a direct upgrade without modifications.

Technical specifications

The barrel has an inner diameter of 6.03mm and a length of 97mm, specifically for compact pistol replicas. The material is high-quality steel with a grey finish that is corrosion-resistant. The precision bore is machined for a smooth inner wall. The weight remains limited due to the compact 97mm length. The barrel fits directly into standard hop-up units without additional adapters.

Compatibility and application

This inner barrel is designed for GBBR pistols, specifically the Umarex G17/18 and Tokyo Marui G17/18 models. Installation requires basic knowledge of hop-up disassembly - you must remove the hop-up unit from your replica and replace the old barrel. The component fits in both standard and upgraded hop-up chambers. For optimal results, combine this barrel with a quality hop-up rubber.

Ready to add the 6.03 Inner Barrel 97mm TTI to your setup?