The Vanguard Model is the cheap model and I herd they are a junk gun. The Mark V is much better. I am not new to muzzle break systems. I have had guns in the past with them. I can not handle the recoil of a 300 mag without one. I live close to Mag-Na-Port and Williams gun and sight company that can put one on for around $200.00. I am not afraid to spend money on guns. So the price don't bather me. I am going to sell my like new Sauer Model 200 in .308 to pay for it.