Hey that pic looks like my rifle???
Kassat stopped making these a while back as me and many other people wish he didn't because they did work great.
Now the new CSA's have this mount already drilled and placed on the reciever straight from the factory from what I have seen. But what I have been really wishing for is a mount that attaches from the pistol grip whole and the rear butt stock whole to the reciever. That also is left with enough clearance to remove the bolt carrier from the right side of the rifle. Now the icing on the cake would be that the rail sits directley over the rear dust cover straight down the middle of the rifle.
This design in my opinoin would solve everyones optic needs. As the clearance needed to remove the bolt carier would also allow you to use iron sight's and with a check riser on your stock would be a perfect combo to use with an optic, red dot or holo sight. Right there in perfect placement position. I did a proto-type a while back but no one liked my idea although it was missing the rear butt stock idea that would lock the reward momentium & make it rock soild. Here is a pic of an idea I was thinking about;
Also NEA does have a similar idea that does work fine for my magnifer but I don't know about a scope though. Maybe some one else will chime in about it's repeatability of zero when it comes to optic's. Here is what it looks like; [UNQUOTE]
Satain,
I seem to remember that you designed a very ingenious mount that fitted to the pistol grip - made on your uncle's CNC milling setup, was it not?
I thought that looked like a great system and tried to figure a way to duplicate it without access to a milling machine or other machine tools. Unfortunately I never did come up with a satisfactory method, short of carving it out of a piece of billet material using grinder, file, and several years worth of elbow grease.
I agree with you that the two mounting points on the receiver - the hand grip and the butt stock - should allow making a mount that would be high enough to clear the dust cover, run straight down the centerline of the rifle, and still not interfere with ordinary cleaning or maintenance.
Kasat's other idea - the one that used the buttstock mount and the rear iron sight mount, and carried a full length rail - was also something that I still think is worth pursuing. I've seen pictures of the one he built, and it looked pretty solid.
I made a rear peep sight not unlike the Rauch Tactical one, using a small washer, some J-B Weld, and a spare rear sight leaf. It worked after a fashion, but my eyes are not getting any younger, and even a 4x optic would be a big help.
As to the CSA rifles having a side rail already mounted at the factory - great idea. However, my VZ-58 and CZ-858's were purchased long before CSA had even been invented, so the best I can hope for is a really solid aftermarket optic mounting system that's not ultra-finnicky to install.
The one other difficulty (?) with using the standard Russian side rail is not so much the drilling, or even tapping, or making a side adapter plate. It's where to position it, front to back, in order to get the correct amount of eye relief for a magnified optic. If a person goes this route, you pretty much have to have picked out a scope beforehand, and then use only that scope or one with similar eye relief. A mount with a weaver rail on top improves this to some degree, but it's still a factor to be considered.