Black Knight M4 Outer 2 Piece Barrel System 9in. and 14in. for M4 AEGs
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- Manufacturer: Black Knight
- Color: Silver
- Material: Metal
This two piece barrel system fits most M4 mode AEGs. This means you can have a 9 inch length barrel for a silencer, and you can add the second piece for a 14 inch long barrel. Both have 14mm CCW threads.