I recently installed Heinie Straight 8's on my HK45 (dovetail design as the P30). Yes they did take some fitting to install, but it wasn't too bad. All I had to do was file the base of the dovetailed portion of the sight to shorten it a little bit and then drive it in with a brass punch. This had to be done on both the front and rear sights. Also I had to file the bottom of the front sight screws as they come too long.
A fine grained file and large brass punch and maul did the job for me. And it went fairly smoothly. As for the end product, they are excellent sights! I love the presentation and the sight picture. And if you feel that it would be too much work to install them yourself, you could always send your slide to Heinie or have a local gunsmith do it.
I haven't had any experience with the other two listed sights.
A fine grained file and large brass punch and maul did the job for me. And it went fairly smoothly. As for the end product, they are excellent sights! I love the presentation and the sight picture. And if you feel that it would be too much work to install them yourself, you could always send your slide to Heinie or have a local gunsmith do it.
I haven't had any experience with the other two listed sights.