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 5985-01-025-1951
NSN 6220-01-421-4448
NSN 5920-00-152-4003
NSN 5960-00-906-6087
NSN 5835-00-789-1454
NSN 6135-01-104-3790
NSN 5975-00-477-6607
NSN 5910-01-487-8165
NSN 5920-01-116-3576
NSN 5998-01-139-3802
NSN 6650-01-078-0114
NSN 5930-01-385-9380