I just picked up my Harbinger .308 and wow I am speechless, this rifle while only weighing in at 6.57 lbs is as Rock Solid as any of my JP Rifles. It is a work of Art and the Quality is Perfection, I got it with a 16" SS barrel, AR Gold Flat trigger and a Furion Muzzle Brake. There is a video on youtube where this rifle was tested and for being so light it had very little recoil and that rifle didn't have a Brake on it. It is made of Titanium, Lithium Alloy, Magnesium and some Steel like the Barrel and the Bolt but the Complete Bolt Carrier is made of Titanium. Check V7 out if you want a light but Rock Solid and Well Built AR Rifle.