 The interchangeable front sight is replaced with a pinned-in ramp sight, but the adjustable rear sight is retained.The Alaskan is available in .44 Magnum, .454 Casull/.45 Colt, and .480 Ruger, with the .480 model originally a 6-shot, replaced in 2008 with a 5-shot model to aid in spent cartridge extraction.All Alaskans feature a brushed stainless finish and a Hogue Tamer rubber finger groove grip, rather than the standard GP100 style.