We believe that firearms bring people together and create generational memories. Since the 19th century, the .22 LR has been a perennial favorite for beginning and seasoned shooters alike. That's why we're excited to bring you everything you love about our AR and pistol barrels to the beloved 22.As with all Faxon Barrels, the Faxon Rimfire line is made in-house at our Cincinnati facility from raw bar stock, and undergo the same rigorous testing and quality control measures that have made our AR and pistol barrels a market favorite.These barrels are made from 416-R stainless steel, given 6 Groove Rifling at a 1:16 twist, and a Recessed Target Crown. Barrels are Magnetic Particle Inspected, and are finished in either Salt Bath Nitride or PVD.To give these Faxon Rimfire barrels our unique touch, we have adapted 3 of our most popular barrel profiles from the AR platform to rimfire: Pencil, Straight Fluted, and our patented Flame Fluted profile.Faxon Rimfire barrels offer weight-savings to typical factory barrels for 10/22. Standard Factory Barrel: 1.78 lbs Faxon Rimfire Pencil Barrels: 1.0 lbs Faxon Rimfire Fluted Barrels: 1.4 lbsAll Faxon Rimfire Barrels are backed by the Faxon Lifetime Guarantee. Specifications: Barrel Caliber: .22 LR Barrel Chamber: .22 LR Sporting Barrel Profile: Pencil Barrel Material: 416-R Stainless Barrel Weight: 1.0 lbs Barrel Length: 16 Barrel Twist: 1:16 Barrel Finish: Salt Bath Nitride Rifling: 6 Groove Target Crown: Recessed Compatibility: 10/22, non-takedown Taper: .625 after chamber .500 before thread shoulder Muzzle Thread: 1/2x28 These Faxon Rimfire barrels for 10/22 come with .625 long threads. Each barrel ships with an included adaptor ring that should be used with any muzzle device or suppressor that is short-threaded (.400) for rimfire.