Interchangeable stock module that provide comb height options for scope or iron sight use. 3/8″ rimfire scope base is machined into the receiver which is also drilled and tapped for Weaver #12 bases (not included). Black composite stock with modern forend contouring and grip serrations. Williams fiber optic front sight. Adjustable V-slot rear sight. Sling swivel studs. Satin blue finish. 60 degree bolt. Ruger Marksman adjustable trigger that is user adjustable between three and five pounds. Threaded barrel with a 1/2-28 thread pattern and a factory installed thread protector.Caliber-Gauge : .17 HMRMade In The USA : Made In The USALong Gun Web Model : Ruger AmericanThreaded Barrels : Threaded BarrelRetail Price : 359.00Description : American Rimfire Standard Rifle .17 HMR 18 Inch Threaded Barrel Satin Blue Finish Interchangeable Stock Modules Black Composite Stock 10 RoundBarrel Length : 18Caliber : .17 HMRCatalog Vendor Name : RUGERCapacity : 10Finish : Satin BlueModel Body Copy : Comes with long length of pull module.