Silencer Suppressor AAC Type SCAR-SD Without Flash Hider

Manufacturer unknown. The dedicated muzzle device is missing and not included.
A SCAR-type or AAC-type muzzle device is required for attachment.
It may have been made by Cyma, but this is uncertain, so please consider it a junk item of unknown manufacturer.
Sound-dampening sponge is included inside.

Additionally, depending on the manufacturer, even the same type of muzzle device may not fit.

Please judge from the photos.