Faxon Firearms Rimfire Pencil Barrel Features The Faxon Firearms Rimfire Pencil Barrel is built from 416-R stainless steel bar stock at Faxon s Cincinnati facility using the same rigorous magnetic particle inspection and quality control that back their AR and pistol barrel lines. Six-groove rifling at a 1:16 twist rate is tuned for standard .22 LR bullet weights delivering stable flight and consistent accuracy at the range. A recessed target crown shields the critical muzzle area from dings that would otherwise open up group sizes. The pencil profile trims unnecessary mass giving the 10/22 a noticeably lighter swing for plinking or training sessions. Salt bath nitride treatment locks in the bore surface for improved wear resistance and easier cleaning after a day of shooting. The barrel tapers from .625 inches after the chamber down to .500 inches before the thread shoulder keeping the profile slim without weakening the barrel. A 1/2x28 muzzle thread is ready for a suppressor or muzzle device making this barrel useful for both quiet range days and standard plinking setups. Designed as a drop-in fit for non-takedown 10/22 rifles it gives shooters a straightforward path to a lighter more refined rimfire rifle. Faxon Firearms Rimfire Pencil Barrel Specifications Brand: Faxon Firearms Model: Rimfire Pencil Barrel Compatible Hosts: Ruger 10/22 (non-takedown) Caliber: .22 LR Barrel Length: 16 Barrel Material: 416-R Stainless Steel Barrel Finish: Salt Bath Nitride Barrel Profile: Pencil Twist Rate: 1:16 Rifling: 6 Groove Target Crown: Recessed Muzzle Thread: 1/2x28 Weight: 1 lb Available At: GrabAGun