Gents,

Like many of Geissele's products the Super Precision mounts started with the DOD and a specific request.  I didn't develop these in a vacuum, but put together the design specification from what I was told, and the things lacking in other scope mounts that are on the market.

What was needed was a mount that

*was very stiff and did not use the scope as a structural member
*highly accurately machined and true ring bores
*a specific way of clamping to the upper receiver picatinny (using the Vees, not the loosely toleranced top as a datum)
*integral shear lugs that had a close fit to the slots in the upper receiver
*QD, toolless was not needed
*no levers which don't hold up (don't shoot me, not my words but theirs)
*proper fit to the scopes that the mount is used for (no rings jammed up against the turrets or objective)
*the best possible return to zero that can be achieved

Here is how the design was approached:

Stiffness:  using 5 axis machining, lightening pockets are generously used so that the structure of the mount is much stiffer than a mount with thin sections.  A full length rib is used between the rings and also one coming off the back ring.  No spindley flexible flyer extensions.  The cross bolts are spread out, not close together

Accurate rings:  The entire mount in the op's picture is machined from a 4.6lb block of billet 7075-T651 aluminum, the rings are "line bored" one to the other (no separate caps), exactly true to the bottom picatinny interface.  The caps are then finely cut from the bottom ring with a 0.015" jeweler's saw and each cap seriaized to its corresponding ring base (each mount has its own unique serial number)

Clamping:  Use of the U.S. Mil method by clamping to the Vee's, not the less accurate and secure "NATO" way.

Shear lugs:  Both clamp screws are machined with flats to act as shear lugs and with a low height to the slot, there are also two integral machined in shear lugs that are a close fit to the receiver.....almost no movement backwards and forwards.  This is the right way to set up for a semi-automatic weapon with recoil and counter recoil forces.

QD:  My customer leaves the mount on the weapon and does not have a need to flip back and forth between guns and deal with the corresponding rezero.  Also, they now jump with the optic on the gun instead of removed so there is no need to install after insertion.  The cross bolts clamp the mount to the upper with over 1,400 pounds of force for each bolt.  No lever system can compare to this kind of secure attachment.

Levers: their call.  (That being said a "tool less" version of the Super Precision clamping system is being developed)

Proper fit:  The mount in the op's picture was designed specifically to fit the Vortex 1-6x24.  The rings are right in the center of the gap between turret and eyepiece when the scope is at the correct eye relief.  Because we machine out of a solid block we have the ability to put the rings and cross bolts where ever we want....there are no constraints.  That does not mean it won't fit other scopes.....its just made perfectly for the Vortex

RTZ: cross bolts that are spread out, full angle contact on the clamp wedges (not partial on the top angle), U.S. Mil picatinny interface, good shear lugs, stiff mount so that the scope is no longer loaded structurally, or the scope is what keeps the mount together, high clamp loads and ultra tight tolerances give The Super Precision excellent return to zero with NO torquing values needed for the clamp nuts.  Just tighten by hand with a Letherman screwdriver or 1/2 wrench and go.  RTZ has been reported with just hand tightened nuts, even loose nuts and the scope and mount held on by the spotter.

Here is a picture of the 4.6lb aluminum billet we use and a picture of the resulting 5.1oz mount.  This is a 34MM mount in the picture.  Note how the mount is made in one shot, all features precisely machined to each other.



At launch in Jan we plan to have 3 different types of 30mm mounts, 4 types of 34mm, black anodize and the DDC shown in the picture, 0 MOA, 20 MOA versions and mounts for the Aimpoint T1/T2, Trijicon MRO and others.

There are also two aluminum alloys available.  7055 Aluminum which is a stronger 7075 and also Alcoa's 2099 advanced Lithium/Aluminum alloy which is as strong as 7075 but lighter, stiffer and more corrosion resistant.  2099 is used in highly loaded airframes by Boeing and Airbus and is considered the cutting edge of aluminum alloy development.

Mount cost is around $350

WHG

and Mrs. ALG is bugging me for a mount of her own, target price of $75 with the ALG Square Deal

Neat


Which alloy is projected to be the $350 mount?

5.1oz is without hardware.  I wanted to show the reduction in the aluminum billet.

Each 17-4 PH stainless crossbolt, clamp and nut combo adds 0.9 oz

the 2099 mount will come with titanium bolts, so its hardware will be even lighter

Anything less than 3" offset is way too short for me

What I do is shoot for accuracy, sometimes prone.
I realise that is a bit of a anathema here, but tis what I do

You silly, you and all your 25,000 13er posts got me.  Ya made me look for last 24 hours in EE ... and there was none.

They do come often in great big trucks for our chips.

A good reason to have QD is to jump without critical optics attached to the rifle ... their words, not mine ...

... or to get something pricey like this NV device off the rifle before submersing it into the ultrasonic cleaner. Again, their words, not mine.

And hey, we just happen to make the QD lever mount for it.  It being the most expensive optic device we know of to be military issue.  The Hubble barely beats it in clarity.

The curious question is why was something with this sort of price point recently fielded / spec'd for a DOD contract ...
... be spec'd with " levers which don't hold up "  ...