Hi .357 Magnum. NOWHERE in my response to m4bgringo did I imply that porting INCREASES muzzle blast/flash. It merely re-directs it UPWARD. If that were not true, it would not lessen muzzle lift as YOU NOTED in your post. Your statement that Magnaporting "DOES increase the value of a firearm" is merely company Kool-Aide that you are regurgitating from their website. You will find that out when you try to sell your collection off, and notice that un-molested examples of your weapons are fetching more than buyers are willing to pay for yours. Unless it is "FACTORY" you lose value. BTW, welcome to the Forum.......

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'Nam 1968-69.DAV,VFW,NRA Inst.