A team of the finest firearms manufacturers in the U.S.A. has been re-assembled to bring to market the highest quality AR type rifle possible. These good Maine folks - most of whom are former employees of Bushmaster Firearms - offer many years of experience in the industry. Quality, fit, finish, durability, accuracy and value are all superb - giving credence to Windham Weaponrys motto The Quality Goes In, Before The Rifle Goes Out. This rifles features include: 16" M4 Profile, Chrome Lined Barrel with A2 Flash Suppressor, 1/9" rifling, 6 Position Telescoping Buttstock, M4 Double Heat Shield Handguards, A2 Pistol Grip, A4 Carry Handle w/Rear Sight, A2 Front Sight.Features :Model: R16M4A4TCaliber: .223 Rem. / 5.56mm NATOType: RifleAction: Semi-Automatic, Gas Impingement SystemCapacity: 30 + 1- Ships with one 30 Round Magazine (accepts all std. sizes)Safety: Manual Lever with Indicator Markings on Both Sides of ReceiverReceiver: M4A4 Type Flat Top Upper Receiver with Detachable Carry HandleReceiver Material: Forged 7075 T6 Aircraft Aluminum with Aluminum Trigger GuardReceiver Finish: Hardcoat Black Anodize Finish