Designed for superior accuracy and performance, this I-Fluted barrel features a unique chamber to provide optimal accuracy but also superior function. - .920" - 1/2" x 28 Threads- 1:16 Twist - .22LR - 2.95 lb with comp - 18.5" long, 20.125" with comp - BULL barrel profile - Barrel shank is machined .0025" oversized for secure fit and canting prevention - Match bore and chamber dimensions, no more than +/–0.0001" from breech to muzzle - Digitally measured and inspected barrel Made in USA MPN: VC10SF-B UPC: 810162011826 If you're looking for the STAINLESS version, click HERE! Check out our other 10/22 Volquartsen barrels HERE!