Model: R16M4A4PT-MA

Caliber: .223 Rem. / 5.56mm NATO

Type: Rifle

Action: Semi-Automatic, Gas Impingement System

Capacity: 10 + 1- Ships with one 10 Round Magazine

Safety: Manual Lever with Indicator Markings on Both Sides of Receiver

Receiver: M4A4 Type Flat Top Upper Receiver with Detachable Carry Handle

Receiver Material: Forged 7075 T6 Aircraft Aluminum with Aluminum Trigger Guard

Receiver Finish: Hardcoat Black Anodize Finish

Bolt Material: Machined from Mag Particle Inspected Carpenter 158 or 9310 Steel

Barrel: 16” M4 Profile, Chrome Lined with Compliant Welded Muzzle Brake

Barrel Material: 4150 Chrome Moly Vanadium 11595E Steel w. M4 Feed Ramps

Rifling: 1 Turn in 9” – Right Hand Twist

Stock: Fixed Position Buttstock with Windham Weaponry Logo

Forend / Pistol Grip: M4 Double Heat Shield Handguards / A2 Black Plastic Grip

Rear Sight: A4 Dual Aperture Elevation & Windage Adjustable: 300 – 600 M

Front Sight: Adjustable Height Square Post in A2 Standard Base

Packaging: Hard Plastic Gun Case with Black Web Sling & Operators Manual