The Ballistic Advantage® Ruger® 10/22® 16.1" .22 LR 1:16 Stainless Steel Barrel is a direct fit replacement for standard Ruger 10/22 and features a chamber mouth bevel for improved feeding and better cartridge alignment. Includes thread protector. This barrel boasts hardened 416R stainless steel construction with a corrosion-resistant bead blasted finish. The 1:16 twist rate is perfect for superior precision at the range while the 1/2x28 thread pitch allows you to take advantage of your favorite muzzle devices.