*MODIFY M4 6.03id Bore Barrel 363mm
Available Now for Pre-Order
- Black Python BP363 363mm Tight Bore Barrel
- Apply to Model 4A1/SR16 series
- The choice of B.B. will be very important. We will only ensure our barrel is 6.03mm diameter
- MOD BARL 363MM
Black Python is our experimental product. By using hard coating process, our barrel can provide the smoothest inner barrel surface and reinforced structure.
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