The CZ 455 is the latest generation of the CZ bolt-action rimfire, featuring an interchangeable barrel system that allows the user to easily change the stock configuration as well as the caliber of the rifle. The 455 retains the accuracy and quality of the adjustable trigger, hammer-forged barrel, and billet machined receiver from the CZ 452. Improvements that the 455 brings include new manufacturing technology and tighter tolerances for improved accuracy and smoother operation. Additional features include: an integral 11mm dovetail for scope mounting and a 5-round detachable magazine. 1 in 16" twist.