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durability
Compatibility: For Most Tokyo Marui Spec M4/M16 Standard AEG Version 2 Gearboxes
The PolarStar Fire Control Unit Rev
CO2 cartridges pack
PolarStar F2™ Nozzle milsim durabilityFor cylinder conversion systems, PolarStar assigns numbers to nozzles instead of using the rifle model, since nozzle length varies between manufacturers of the same gun model. A standard MP5, for example, could require any of 4 different nozzle lengths depending on manufacturer. Once you determine your replica's nozzle number, that number is universal across all engines using the numbered system (excluding some model specific Kythera systems). Formula
