Advanced Armament Corp. was formed in 1994

RATCHET MOUNT (51T)
The revolutionary Ratchet Mount system is the most intuitive silencer
mounting system available. Users are able to securely install the silencer on
the weapon in under three seconds without the use of tools and with no moving
parts. The ratchet latch prevents the silencer from loosening during use. To
combat fouling, the very action of dismounting a Ratchet Mount silencer
breaks the bonds of copper and carbon that can solder less inspired silencer
designs to their flash hiders. Installation is as simple as threading the silencer
onto the mount’s ACME threads until tight. Removal requires a squeeze of the
ratchet latch lever while unscrewing the silencer.
RATCHET TAPER MOUNT (90T)
If the 51 tooth Ratchet Mount system was revolutionary, the new 90 tooth
Ratchet Taper Mount is clearly evolutionary. Based on feedback from
customers, AAC designers configured a BLACKOUT® flash hider with a 90
tooth gear and a silencer bearing interface with a low angle taper. A finer pitch
ACME thread draws the taper on the flash hider against a mating taper in the
suppressor mount, resulting in a rock solid flash hider-to-silencer interface.
As with the 51 tooth Ratchet Mount, the 90 tooth Ratchet Taper Mount
incorporates a spring biased ratchet lever that acts as a failsafe to prevent the
suppressor from inadvertently unthreading from the flash hider.