M4 Polycarbonate diameter nozzle

SHS Polycarbonate diameter nozzle for M4


--Material:Polycarbonate
--Technology: CNC machining
--Size:M4(21.45mm)
--Feature: Special design diameter in the normal nozzle, which push bb forward 1.1mm, while ensuring smooth functionality with few pressure, performance air nozzle allow for better air compression, air seal increase, special for autofire rifle