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View Full Version : RobArms and K-VAR Weaver Mount Observations


Ian
05-11-2003, 06:34 PM
I have a few observations about the RobArms and K-VAR weaver scope mounts on my VEPRs. Please excuse me if my technical terms are not completely correct.

On the RobArms mount, the centerline of the weaver rail sits low and directly over the centerline of the bore. This mount is adjustable for windage and elevation in case the side rail of the rifle is out of alignment with the bore. When this misalignment happens, a scope may have insufficient range to bring its reticule on target. (My VEPR II .223 does not have this problem.) Set pins can be optionally drilled to lock the windage and/or elevation adjustments in place. If this is done, the mount is effectively dedicated to one rifle. If set pins are not drilled, be sure to use red loctite on the adjustment screws. My gunsmith did not do so on the first visit, so a second visit was required after two 30rd magazines were fired. The locking mechanism on the RobArms mount works by pulling the center of the lower rail of the mount, which is 4” long, up against the lower side rail on the rifle. The locking mechanism appears to be adjustable in a manner similar to POSP scopes, but I didn’t try it out. When the mount is on the rifle, the front and rear sights can be viewed through the channel in the weaver rail. My VEPR cannot be field stripped or reassembled with the RobArms mount attached.

A VOMZ/Pilad 4x32L scope is attached to the RobArms mount using Millet Angle-Loc windage adjustable 1” medium rings. This configuration allows me to view the iron sights below the scope. I am thankful for these windage adjustable rings because I was able re-adjust the scope without have to undo the red loctite screws in the mount. I was also able to bore sight the scope by looking a target through both the scope and iron sights. I think that the use of windage adjustable rings may enable the mount to be easily used on other rifles.

I recently purchased a K-VAR weaver scope mount through a private sale. The centerline of this mount’s weaver rail sits high and approximately 1/4” to the right of the centerline of the bore. The locking mechanism of the K-VAR mount works by pulling a small block up against the lower side rail on the rifle. This block is 7/8” long and comprises the middle part of a 1-1/2” lower rail. The locking mechanism can be adjusted by rotating a locking nut on a screw that goes through this block. I’m able to see the iron sights entirely underneath the mount. My VEPRs can be field stripped and reassembled with the K-VAR mount attached. I have not yet attached a scope on this mount.

Both of these mounts seem well made. The K-VAR mount weighs about 10oz, the RobArms mount weighs a little less, but I don’t have the exact weight. The RobArms mount costs about $10-15 more. I hope these observations will help you decide which mount is best for you. I’m sorry that I don’t have pictures to show you; I haven’t learned how to post them yet.

Regards,
Ian

leftover
05-14-2003, 09:27 PM
Good review, thanks. If you were going to buy only one tomorrow, which would it be ?

HDR
05-15-2003, 10:29 AM
I bought the Rob Arms and the reason was :

Originally posted by Ian
On the RobArms mount, the centerline of the weaver rail sits low and directly over the centerline of the bore. Regards,
Ian

I prefer a low and centered mount..

Ian
05-15-2003, 02:00 PM
I prefer low and centered as well.

I'm thinking about putting a Hakko BED-35 red dot sight on the RobArms mount and use it on a Vepr K. I just have to figure out how to easily undo red loctite. I guess blue loctite would've been a better choice in the first place.

Regards,
Ian

HDR
05-15-2003, 04:15 PM
You're not going to like the answer, heat and a lot of it.

Threadlocker 272 - High Temperature (450°F)
Hi-temp/hi-strength formula. Suited for temperatures up to 450° F. Fast cure on most surfaces including "as received" fasteners. Recommended for bolts up to 1 1/2" (36mm) in diameter. Heat and hand tools required for disassembly. Available Worldwide


After 450° it unlocks.


I put an older bushnell 3x9 with a 30-30 reticle on mine. Its good fun.
Never liked the width of the slot in the RPK sight, idiotsyncracy. ;)

Ian
05-15-2003, 07:15 PM
Is that 450 degrees of blow torch heat or oven heat? The scope mount is lightweight, so I'm guessing it's made of aluminum. Should I be concerned about damaging the mount? I'll send these questions to RobArms as well.

Thanks,
Ian

Ian
05-20-2003, 10:54 PM
I recently spoke with Robinson Armaments about how to undo red loctite on their Weaver scope mount. Their response was not to use it in the first place; blue loctite is all they use in their shop. Looking at the Loctite catalog, I think Blue 242 or 243 is the to go from now on.

Ian