TAPCO 10/22 Fluted Drop-In Barrel - Threaded - Upgrade your Ruger(R) 10/22 rifle with the TAPCO 10/22 Fluted Drop-In Threaded Barrel. Threaded with 1/2 x 28 it provides compatibility with various muzzle devices, allowing for customization for your preference. 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 Threaded 1/2 x 28 Caliber: 22LR Bentz Chamber Length 16.5in Stainless Steel