Caliber: 300 AAC Blackout - Action: Semi-Automatic - Magazine Capacity: 1-30 round - Overall Length: 25 inches - Extended Barrel Length: 10.5 Heavy Barrel - Rifling: 1-8 Twist - Weight w/o Magazine: 4.9 lbs. - Receiver: Forged 7075-T6 - Front Sight: Optic Ready - Butt Stock: N/A - Grip: Magpul - Forearm: Andersons EXT Free Float - Flash Hider: Knight Stalker - Gas Block: Low Profile No Rail