What s in the Box Ruger American Rimfire Rifle Interchangable Stock Trigger Lock Owner s Manual The 100% American-made Ruger American Rimfire .22 Magnum bolt-action rifle builds on the enormous success of the centerfire Ruger American Rifle . With many of the standard Ruger American Rifle features, this new line also combines several design innovations from the popular 10/22 rimfire rifle. This combination, along with the rifle s adaptability, appeals to bolt-action enthusiasts - whether young or old, novice or experienced. Catalog Number: AMER-RF Model Number: 8321 Caliber: 22 WMRF Capacity: 9 Stock: Black Composite Material: Alloy Steel Finish: Satin Blued Barrel Length: 22.00 in. Overall Length: 41.00 in. Front Sight: Fiber Optic Rear Sight: Adjustable Weight: 6.00 lbs. Length of Pull: 13.75 in. Twist: 1:14 RH Grooves: 6