CMMG Barrel, 300 AAC Blackout, 16.1" Barrel, 1:7 Twist, Carbine 4140 CrMo Salt Bath Nitride Finish, 5/8"-24 TPI 30DF80A
Specifications:

Caliber or Gauge	300 AAC Blackout/Whisper (7.62x35mm)
Length	16.1"
Model	Barrel Sub-Assembly
Twist	1:7"
Sights	None
Bore Type
Finish	Black Nitride
Type	Rifle
Chokes Included
Choke Configuration
Barrel Type	Carbine Length
Ammo Type
Barrel Features	Multi Role Profile