TAPCO 10/22 Fluted Drop-In Barrel - Upgrade your Ruger(R) 10/22 rifle with the TAPCO 10/22 Fluted Drop-In Barrel. Specifically designed for the .22LR caliber, this barrel is ideal for target shooting, plinking, and small game hunting. With a Bentz Chamber design, you have a better bullet-to-chamber fit. The stainless steel barrel includes multiple flutes flowing down the barrel for improved heat dissipation and a distinctive look. Drop-In Caliber: 22LR Bentz Chamber Length 16.5in Stainless Steel