CMMG , Caliber: 5.7 x 28mm
CMMG 54AE10FAB BANSHEE MK4 5.7X28 8 BRC ARBLK
Model:

8" , Weight (oz):
CMMG 54AE10FAB Banshee MK4 5.7x28mm 32+1, Black Nitride Medium Taper Threaded Barrel, EML 11" M-LOK Handguards, Black Armor Cerakote Aluminum Picatinny Rail Receiver, CMMG Zeroed Grips