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

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 the product you didn't think you need, but once you have it, something you won't want to live without.

Inventory Last Updated: Aug 28, 2025