In the '80's, the Mk II hit the stage and deviated from the classic fixed sight Hi Power in its higher visibility fixed sights as well as its extended, ambidextrous thumb safety levers. It also had a narrow full-length rib atop the slide. The frame was forged like the older Hi Powers, but the finish could have very well caused major heart palpitations for those preferring polished blue finishes. Gone were the checkered walnut grips and in their place sat black, checkered nylon ones with thumb rests! The earlier production runs did not have the internal firing pin safety common the practically all of the soon to come Mk III pistols sold in the US.
In the late '80's, FN produced the Mk III. Imported by Browning, this version of the Hi Power initially had a forged frame and the gun retained not only the stocks, but also the extended thumb safety levers. Both the Mk II and the Mk III came with the now common spur hammer. The Mk III did not retain the rib on the slide and the fixed sights were larger and both front and rear dovetailed into the slide. Every Mk III that I've seen sold in the US came with the internal firing pin safety. These pistols' slide and frames were finished in a baked epoxy finish that has varied from somewhat dull to downright shiny black. Regardless, Browning calls this a "matte" finish. The shape of the ejection port was also changed to a more square one very similar to that of the 1911. This was done to increase the metal present at the lower rear of the port to reduce the chances of the slide cracking under extremely heavy use with stout loads.
With the introduction of the forty-caliber Hi Power, a change was made from forged to quality cast frames. Some gasped in horror at this. It was reportedly done, as the frame was stronger than the forged. It has been reported that after about 2500 rounds of forty-caliber ammo, the forged frames would warp. The cast ones did not and soon both the forty and 9mm versions were available only with cast frames, probably a manufacturing cost-cutting measure. Contrary to what some have reported, the slides on Hi Powers have never been cast. They continue to be forged to this day. Because the frames are harder, current Hi Power slides are tougher as they are heat-treated to a higher level than was possible with the softer forged frames.
Using the Mk III "chassis," several cataloged versions of the Hi Power exist today and probably some with specific special modifications for certain military or intelligence services throughout the world. In this country, we see:
