MagnaPort.com is a maker of shotgun accessories in Harrison Township, MI
Title
Mag-na-port International--Home Page
Description
Kelly, a handgun hunter since the late '50s, found the punishment meted out by his .44 Ruger Blackhawk was detracting from the fun of shooting, and the extreme muzzle lift was adversely affecting the accuracy and speed of a second shot.
By 1965, the concept of trapezoidal ports cut into the muzzle by Electrical Discharge Machining procedures, had evolved. The theory was based on Kelly's years of EDM experience in general, and work done on fuel control valves for spacecraft on the Apollo project.
In 1969 Apollo EDM was formed, but only a small part of the new company's business was gun related. After a slow beginning, Kelly's efforts were finally recognized by the firearms press, and by 1973 demand for Mag-na-porting seemed to warrant a fulltime effort.
