First,
I have got to say thanks to Moguner1 for starting this topic, because while I thought I would be helping him out, I think the posts here have helped me out.
Second,
Thanks to everyone else who jumped in here. I have been looking at grabbing some LaRue Mounts to give them a try in place of the ARMS Mounts that I normally use. I had no idea that the recoil lug on them was only in the center. While 95% of the Rails that I have are what I would call “True Picatinny Spec” (back-to-back recoil grooves with no center channel), I do have one Rail/Riser that has the irregular recoil grove spacing and has the channel down the middle of it. I would be concerned about a LaRue Mount being able to move backward or forward on that Rail/Riser.
That’s the great thing about this place, with everyone helping everyone out a lot can be learned.
In regards to what is, or what is not, “True Picatinny Spec”, it is a Govt/Military Spec so good luck figuring it out. This does bring up a very good point that for the system to work, that there would not only have to be a spec for the Rail, but also a spec for the Mounts that go on the Rail. While I have seen the specs for the Rail posted all over the place, I have not seen the spec for a Mount that would go on the Rail. I guess this means that I will be doing some more research to try and find out more about the Rail and Mount specs.
Below is Picture of the issue that I was talking about earlier with the Recoil Groove Spacing.
With this Carry Handle Mount and this One Piece Scope Mount the two would not line up so I had to cut an extra Groove on the Carry Handle Mount. This is why I will now only buy the Mounts that have the continuous back-to-back Grooves.
Thanks again to everyone,
“Capt Richardson”