The adaptability and precision of the Hammerli Arms Force B1 Bolt-Action Rimfire Rifle makes it a versatile choice for a wide range of scenarios. Toggle-style straight-pull action delivers lightning-fast follow-up shots and a rock-solid lockup for enhanced accuracy. The action closes with a stealthy touch of suppression. Quick-change barrel system offers toolless and field-ready swaps between barrel lengths and calibers. Adaptable Magwell coordinates caliber changes with the correct Ruger magazine. Stock adjusts for length of pull and comb height without tools. Threaded barrel with standard 1/2x28 TPI fits a variety of muzzle devices and suppressors. Ruger 10/22-style trigger group allows for easy customization. Hammerli Arms Force B1 bolt-action rimfire rifle accepts Ruger rotary-style magazines and has a Picatinny rail for optics mounting. Toggle-style straight-pull action Rock-solid lockup for enhanced accuracy Toolless quick-change barrel system Adaptable Magwell Threaded barrel with standard 1/2x28 TPI Ruger 10/22-style trigger group Accepts Ruger rotary-style magazines Picatinny optics rail