CVA Cascade Veil Tac Black Bolt Action Rifle – 300 AAC Blackout – 16.5in – The Cascade line for 2021 is the SB (Short Barrel) Series. Containing all of the same features found on the original Cascade, the SB Series was developed for use in tight quarters, commonly found in hunting blinds, especially when using a suppressor. This rifle also make the perfect passenger as your go-to truck rifle. Like the original Cascade, the SB series features a suppressor-ready threaded muzzle.