ShoppingClick for larger image Lightweight 16" Barrel Sale Price: $149.00 Regular Price: $169.99 You Save: $20.99 Quantity: 16" Light Weight Barrel 5.56 mm4140 Chrome MolyThreaded Barrel — Thread Pitch 1/2 x 28Gas Block Diameter .750Gas Tube Length — Carbine1-9 RH Barrel Twist6 Lands and GrovesButton Broached