Unicorn Airsoft 6.03mm Nitaflon Coated Brass Inner Barrel for Umarex MP5A5 GBB (210mm)

Unicorn Airsoft 6.03mm Nitaflon Coated Brass Inner Barrel for Umarex MP5A5 GBB (210mm) Nitroflon Coated Brass Construction (Teflon coating) Teflon coating can reducing the friction as the BB travels through the barrel High grade precision barrel at 6.03mm diameter for extra power and precision shooting Suitable For Umarex MP5A5 Gas BLow Back GBB Gas Blow Back Rifle Airsoft Gun