The AAC M4-2000 features the patent pending fast-attach Ratchet-Mount to provide precision accuracy with minimal and repeatable zero-shift. Users have the ability to install or remove the silencer from the Blackout flash hider in seconds in the harshest military environment. The compact size and light weight have minimal affect on maneuverability. The M4-2000 extreme durability is maximized by CNC automated fusion welding of every high-temperature aerospace alloy component used in its construction- making 100% suppressed full-auto fire possible on barrels as short as 10 inches. The back-pressure lowering design of the silencer aids in shooter comfort, reduces weapon fouling, and minimizes cyclic rate increase.