The hammerli force b1 features a tooless quick change barrel system, transition between barrel lengths and calibers 22 lr-22 wmr; adaptable magwell coordinates caliber changes with the correct ruger magazine; adjustable stock offers tooless customization for length of pull and comb height; threaded barrel enables use of muzzle devices and suppressors; integrated picatinny rail and trigger group compatible with ruger 10/22 style trigger groups.Includes two magazines.Action: BoltCaliber: 22 LRBarrel Length: 16.10"Capacity: 10+1Stock Description: Adjustable All WeatherBarrel Description: Steel ThreadedReceiver Material: SteelSights: NoneBarrel Length Range: 16" to 16.99"Stock Finish Group: Black