Smith & wesson m&p10 rifle is versatile, easily accessorized, and suitable for a wide variety of recreational, sport and professional shooting.The barrel features 5r rifling, an amornite finish, and a flash suppressor.It has a chromed firing pin, ambidextrous safety selector, magazine, and bolt release.The six-position stock has a sling swivel.This optic ready model has a 18" barrel, mid-length handguard with a picatinny-style rail, and a mid-length gas system.Metal Finish: BlackAction: Semi-AutoCaliber: 308 Win/7.62x51mmBarrel Length: 18"Capacity: 20+1Trigger: StandardSafety: AmbidextrousOal: 36.90"Weight: 7.70 lbsStock Description: 6 PositionMuzzle: Flash SuppressorReceiver Material: AluminumSights: Optic ReadyBarrel Description: 4140 Chrome Moly LightweightTwist: 1:10"Barrel Length Range: 18" to 18.99"Weight Range: 7 lbs to 7.99 lbsHand: RightStock Finish Group: BlackMetal Finish Group: Blued/Black