Mag-na-port International, Inc., creators of the patented The original inventors of barrel porting...all others are imitators! Our EDM process helps reduce recoil and muzzle lift on all types of firearms.

Rifle barreled actions only are needed for Mag-Na-Port or Mag-Na-Brake services. Stocks, scopes, and bolts should be kept behind. An Additional charge of $15 per rifle applies when we must remove the action from the stock and reassemble.

The Mag-na-brake is a little less than 2 inches long and is threaded onto the end of the muzzle. Uniquely designed with progressive integrated exhaust chambers for the most effective use of neutralizing expanding gases.

The Pro-port Process: Shotgun Porting. Not all shotgun shooters shoot the same... and not all shotgun porting works the same way. With over 43 years of experience in firearm porting using EDM (Electrical Discharge Machining) we're known as experts in shotgun porting services.

Mag-na-port offers a unique system of porting semi-automatics by using a trapezoidal port through the barrel and an oversized expansion vent through the slide to allow maximum dissipation without fouling.

Etch Mag-Na-Port logo: $35.00: 1. Prices subject to change without notice. 2. Return shipping and insurance charges are in addition to the above prices. 3. Additional charges apply to S&W X Frame Revolvers. 4. A 2.5% fee applies to all credit card transactions. 5. Non-Warranty service billed at $65.00/hr plus parts plus $40.00 Shipping and ...

To order from Mag-na-port International, Fill out the online order form below, and "SEND" a printed copy of it to Mag-na-port International with your firearm.

In 1974, after a year in Fraser, Michigan where Kelly operated the Mag-na-port shop as part of a small retail store, the Company moved to Mount Clemens. Since then, the Company has ported tens of thousands of firearms, ranging from .22LR target pistols to .460 Weatherby Magnums.

One of Mag-Na-Port's most popular conversions, "The Predator", a Ruger Super Blackhawk. The conversion includes shortening the barrel to 4 5/8"; Inverted Muzzle Crown; the famous Mag-Na-Port Process; C-More Sights; Action Job; Velvet Hone Finish, Omega White-Outline Rear Sight; Polished Hammer, Trigger, Ejector Rod and Center Pin.