This model of the tactical is chambered in 6.5 grendel and features a sniper grey finish.It has an 18" barrel with a thread protector muzzle device, and has a twist rate of 1:7.5".It features a manticore arms transformer handguard, sopmod b5 stock, and a velocity 3lb trigger.Action: Semi-AutoCaliber: 6.5 GrendelBarrel Length: 18"Capacity: 10+1Trigger: VelocityOal: 37"Weight: 6 lbsStock Description: SopMod B5Muzzle: Thread ProtectorTwist: 1:7.50"Barrel Length Range: 18" to 18.99"Weight Range: 6 lbs to 6.99 lbs