Spike's tactical st-15 le mid length rifle is designed for law enforcement.The chrome moly vanadium barrel is chrome lined, threaded, has an a2 flash hider, and is mil-spec phosphate coating.The 7075-t6 lower features proprietary low shelf, rdias compatibility, and has a hard coat anodized finish.Its proprietary gas tube has a black nitride finish both inside and out, while the charging handle has a mil-spec type three coating.The spikes tactical m4 stock features 6-position mil-spec buffer tube and a spikes pro grip.The st-15 le also has a jeweled mil-spec trigger, a2 front with a magpul mbus rear sights, and sling swivel.It includes a hard case.This model has a 16" barrel and a 9" bar2 rail.It comes with no magazine.Metal Finish: Black Hardcoat AnodizedAction: Semi-AutoCaliber: 5.56x45mm NATOBarrel Length: 16"Capacity: No MagazineTrigger: StandardSafety: ManualOal: 32.50"-35.75"Weight: 6.40 lbsStock Description: 6 PositionMuzzle: A2 Flash HiderReceiver Material: 7075-T6 AluminumSights: A2 Front, Magpul MBUS RearBarrel Description: M4 ProfileTwist: 1:7"Barrel Length Range: 16" to 16.99"Weight Range: 6 lbs to 6.99 lbsHand: RightStock Finish Group: BlackMetal Finish Group: Blued/Black