Action Army 6.03mm Gas Type 96 Barrel 640mm 6mm (0.23-0.66g) It can also be custom

It can also be custom configured to fit around Tactical Flashlights/Lasers mounted onto the frame of the Pistol

Fits on all M-Lok rail systems for a polymer covering

and the 90/4500 is a tight fit

03mm EG 128mm AEG Barrel

compatible with Version 2 based M4 AEGs by TM

Action Army 6.03mm Gas Type 96 Barrel 640mm 6mm (0.23-0.66g) It can also be customThe Action Army 6. 03mm Gas Type 96 Barrel 640mm. Fits inside the Maruzen based Type 96 style Sniper Rifle. May work with other types of clones and gas or non gas variants. Check your barrel's cut before purchase. This is a 6. 03 inner barrel diameter, so it allows for less jams and tolerances than the 6. 01mm. A very popular choice as an alternative to the Prometheus. One piece high grade metal machined. Precision smooth inner bore with nickel