From the AAC Blackout Flash Hider, I'd say it is a Remington ACR and not a Bushmaster ACR, with Enhanced Handguard... Anyway, they're quite Similar for their Aesthetics and the Real Differences can be noticed on the Magpul Masada and on the latest ACR IC.
Anyway, they're quite Similar for their Aesthetics and the Real Differences can be noticed on the Magpul Masada and on the latest ACR IC.