Prometheus 6.03mm EG Inner Barrel for Marui M4A1 MWS GBB (370mm) BARREL.10.5 adding an unmatched level of

adding an unmatched level of realism to the rifle

Suitable For KJ Works/ ASG CZ SP-01 Series Airsoft Gas Pistol

Fixed Front Sight & Adjustable Rear Sight

Full Metal Frame Construction

Gas Blow Back Pistol with Semi-Automatic Shooting Mode

Prometheus 6.03mm EG Inner Barrel for Marui M4A1 MWS GBB (370mm) BARREL.10.5 adding an unmatched level ofPrometheus 6. 03mm EG Inner Barrel for Marui M4A1 MWS GBB (370mm) For Tokyo Marui M4A1 MWS Airsoft Gas Blow Back GBB Rifle High grade precision barrel at 6. 03mm diameter for extra power and precision shooting With a precision barrel, you can opt for higher grade precision BB's for greater accuracy Choose this barrel to suit your GBB model For custom upgrade user, you can choose a longer barrel Some players use this as one of many tuning tools for a