This rifle has a 16" chrome moly vanadium 1:9" twist, heavy profile barrel with magpul moe m-lok handguard.Carbine length gas system & a2 flash hider.Chambered in a 5.56x45mm nato.Black synthetic magpul moe stock & grip.Forged 7075-t6 aluminum, hard coat anodized, mil-spec receiver with m4 feed ramps.Action: Semi-AutoCaliber: 5.56x45mm NATOBarrel Length: 16"Capacity: 30+1Safety: ManualOal: 33"-36.75"Weight: 6.8 lbsStock Description: 5 Position Mil-SpecMuzzle: A2 Flash HiderReceiver Material: 7075-T6 AluminumSights: None, Picatinny RailBarrel Description: Chrome Moly VanadiumTwist: 1:9"Barrel Length Range: 16" to 16.99"Weight Range: 6 lbs to 6.99 lbsHand: RightStock Finish Group: Black