AAC M4-2000 5.56mm Suppressor, 51T Ratchet Mount, Inconel Core, Gun-Kote Finish, NSN-Marked
This AAC M4-2000 is a fast-attach 5.56mm suppressor with the 51T Ratchet Mount and a fully fusion-welded Inconel 718 baffle core inside a 316L stainless tube. It carries the Huntsville, Alabama USA roll-mark and the military NSN 1005-01-543-4656, and is factory-listed as full-auto capable. The Gun-Kote finish and proven AAC Blackout mount interface round out a model long recognized for durable construction and hard-use capability.
Condition
Overall Condition: Good
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Specific Condition Notes: The exterior shows widespread finish loss. The internal baffles have heavy carbon buildup and will require a deep cleaning. Overall, it remains in good condition.
What’s Included
- Advance Armament Corp M4-2000 5.56mm suppressor (51T Ratchet Mount)
The M4-2000 uses AAC’s 51T Ratchet Mount with a knurled locking collar marked with ON-OFF arrows for quick, repeatable attachment. This example is roll-marked Huntsville, Alabama, USA and carries NSN 1005-01-543-4656, noting its adoption in government inventories.
Construction features include a fully fusion-welded Inconel 718 baffle core housed in a 316L stainless tube, finished in Gun-Kote. It is factory-listed as full-auto capable and designed for use with AAC Blackout flash hiders and muzzle brakes.