JBU 300mm Tight Bore 6.03mm Barrel for M4CQBR(11.81in)

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  • $29.95
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The JBU 300mm Tight Bore 6.03mm Barrel for M4CQBR(11.81in) is a sensational customer favorite, and we hope you like it just as much.

Inventory Last Updated: Aug 28, 2025