Many people have issues with their mounting plates coming loose. They blame it on loctite. But I have a theory:
The slide has 3 threaded holes. Some plates utilize two of the holes. The latest Dawson plate uses all 3. I think the CHPWS plate uses all three as well.
I just installed a FCD plate on my Staccato P. The plate is extremely well made and fits the slide perfectly. The problem is the supplied screws. The plate screws are too long and they touch the extractor in the extractor tunnel. That screw needs to be shortened otherwise the plate will not be tight against the slide. In my case I measured the screw protrusion and the depth of the hole in the slide and they were identical. I shortened the screw .025” and it was flush with the ceiling of the extractor tunnel.
The opposite threaded hole did not cause issues. However the bottom of the hole is sealed. This causes a problem in that air pressure pushes the loctite out around the screw head so you don’t get complete coverage around the threads.
If you install the plate as is the left screw doesn’t have enough loctite to properly retain it and the right screw gets hammered loose by the extractor wiggling around every time it grabs a case.
I think it is a good idea, if using blue loctite, to apply it to the threads in the left threaded hole in the slide with a paper clip. Or to use red loctite extremely sparingly. The right screw needs to be checked for clearance otherwise it will work itself loose.
The sight screw’s supplied by FCD were incorrect as well. The head diameter was too big so I ended up using the Trijicon screws that came with the RMR. Again, I had to modify the length because the short ones were too short (2threads engaged) and the long ones protruded .050” out the bottom of the plate.
The install was a bit of a pain but everything looks good. I hope someone reading this gets something out of it.
The slide has 3 threaded holes. Some plates utilize two of the holes. The latest Dawson plate uses all 3. I think the CHPWS plate uses all three as well.
I just installed a FCD plate on my Staccato P. The plate is extremely well made and fits the slide perfectly. The problem is the supplied screws. The plate screws are too long and they touch the extractor in the extractor tunnel. That screw needs to be shortened otherwise the plate will not be tight against the slide. In my case I measured the screw protrusion and the depth of the hole in the slide and they were identical. I shortened the screw .025” and it was flush with the ceiling of the extractor tunnel.
The opposite threaded hole did not cause issues. However the bottom of the hole is sealed. This causes a problem in that air pressure pushes the loctite out around the screw head so you don’t get complete coverage around the threads.
If you install the plate as is the left screw doesn’t have enough loctite to properly retain it and the right screw gets hammered loose by the extractor wiggling around every time it grabs a case.
I think it is a good idea, if using blue loctite, to apply it to the threads in the left threaded hole in the slide with a paper clip. Or to use red loctite extremely sparingly. The right screw needs to be checked for clearance otherwise it will work itself loose.
The sight screw’s supplied by FCD were incorrect as well. The head diameter was too big so I ended up using the Trijicon screws that came with the RMR. Again, I had to modify the length because the short ones were too short (2threads engaged) and the long ones protruded .050” out the bottom of the plate.
The install was a bit of a pain but everything looks good. I hope someone reading this gets something out of it.
