Making a low-profile red-dot only rail for Ruger GSR?

[Crosshair]

I have a pair of Ruger GSRs, a scout scope on one with a red-dot on the other. I have been thinking about how I can get the red-dot one to allow me to use the iron sights with the red-dot mounted. Either by co-witnessing or by a see-through scope ring. I have a Vortex Strikefire that uses a single standard 30mm ring to mount, so getting an appropriate height see-through ring would not be a problem.



My idea involves taking off the factory rail and putting on a short length of rail that only uses the two front screws. As you can see in the photo, that part of the barrel would allow a section of rail to sit much lower, making it much easier for the hole in 30mm see-through rings to clear the open sights or, even allow the red-dot to co-witness with the sights.

I tried searching, but didn't find anything on the subject. I feel like I can't have been the first person to ask this question. Does anyone know what the hole spacing is for those two screws and if there is an factory scope base, of whatever make or model, or picatinny rail section that would fit and sit low like I want? I could try to whip something up in my drill press, but something factory made would probably work better.

Thanks for all your help.

 

[troy fairweather]

can you just use a riser on the red dot, the utg is hollow.

 

[Varminterror]

I wouldn’t bother with a pic rail, just make a base for the RDS which bolts straight to the barrel, then the sight to the base.

ETA: Naturally, I would take some measurements to ensure cowitness is even possible. Looking at that picture, I don’t expect it will work. That pic rail is still taller than the receiver, and the Ruger sights aren’t that tall. The body of an RDS, plus the pic base would stand taller than the sights if you use an arrangement like that pictured. Lay the rifle on its top, resting on the sights, measure the distance to the barrel from the surface, subtract the appropriate offset for the top of the rear sight to the actual aiming point. That will tell you the maximum thickness of the RDS body and base to even let the sights be visible through the pane.

Personally, I expect a see through mount with a forward mounted RDS will be a Charlie Foxtrot. You won’t be able to see your target, as your FOV will be a narrow snake-hole, too far from your eye to promote a large enough FOV.

 

[Hookeye]

Just go offset mount for the reddot ( clocked and to side like popular on ARs )