M4 type barrel only; assembly less handguards, gas tube, delta ring kit andflash suppressor
No other part numbers with same form, fit, and function found.
Classification: Parts and accessories for military rifles of heading 9301
NSN 5975-00-348-7427
NSN 6145-00-278-0697
NSN 5930-00-406-1159
NSN 6645-01-124-6277
NSN 5920-01-330-5224
NSN 6105-01-336-7843
NSN 5985-00-334-5996
NSN 6105-01-634-0322
NSN 5835-01-015-4610
NSN 6320-00-456-2092
NSN 5930-00-049-8960
NSN 6685-01-501-8697