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The East Crane 6.03mm tight bore barrel series is built to very high precision standards, each barrel have been carefully machined to remove any sharp edges along with the hop-up slot cut to very high precision.
Representing great airsoft value these airsoft internal barrels are perfect for that upgrade to keep costs down.
As with all barrel fitting, it is recommended to measure your existing internal barrel before purchase.
If you have any questions about this product, please let us know and we'll get back to you as soon as we can.