The classic American-style rimfire rifle, the 457 has a 24.8~~ barrel with no sights and is meant to be topped with a scope. Like all of CZ’s 457’s, it has an 11mm dovetail milled into the top of its receiver for attaching scope ring/mounts. This suppressor ready model features 1/2×28 threads and a black synthetic stock.
CZ-USA 02315 CZ 457 American SR 17 HMR Caliber with 5+1 Capacity, 20″ 1/2×28 Threaded Barrel, Black Nitride Metal Finish & Fixed American-Style Black Synthetic Stock, Right Hand (Full Size)