Available in .308 Winchester caliber, the Mossberg 100 ATR Night Train special purpose bolt-action centerfire rifle features a top load magazine with a 4+1 round total capacity, and comes standard with a picatinny rail for scope-mounting versatility. A 4-16 by 60 mm variable scope with sun shade and flip open lens protectors is factory mounted and bore sighted, also included is a biopod and nylon sling. Additional features of the Night Train include its 8.5 pound weight, matte blue finish and 22 inch barrel length.