Only available on 460S&W, 45/70 and 35 Whelen models.
Might be something new for 2016
http://www.cva.com/pdf/CVA_2016_Catalog.pdf
Muzzle Brake
Included with
.45-70, .460 S&W, .35 Whelen
CR4806S – .45-70 V2 Stainless Steel/Black - 25” - DEAD-ON Mount & Muzzle Brake