AR-15 BS Thread

No, I'm looking for how tall to make the risers fit my face. AR needs to be taller. My other rifles have stocks with a drop at the comb. AR does not. If that makes any sense.

 

Viking Tactics, and a home made BFG Vickers clone. N both work fine

 

There’s no universal way for a magnified optic. The common height over bore for magnified optics on an AR is 1.4 (iron sights height) to 2.?? inches. Usually it’s a trial an error thing depending on your cheek weld. Most cantilevers get you pretty close. I’ve used a .55 inch 20 moa riser with low rings as well and have came out ok.

 

The average height for a scope mount on an AR15 is 1.5”.


You can also get 1.93”. That puts your optic pretty heigh but if it fits you better then go for it. Just remember your you will have a lot of height over bore at close range.

 

What rings are you using now?

 

The C to C of bore to scope is 2.75 inches. Bell of scope is ~1/2" over the barrel.

 

I can't remember and I see no name on them. I have CRS

 

Can always get the carry handle then mount scope on top of that

 

Little helpful info from the Dead Center of Precision.



Tall (LT660)
Allows a 1/3 cowitness with the Iron Sights on M4 Carbine and AR-15 Flattops.

Absolute (LT751)
Provides absolute cowitness with the Iron Sights on M4 Carbine and AR-15 Flattops..

Medium (LT660HK)
Provides Lower 1/3rd Co-witness with iron sights when using HK Height iron sights.

Short (LT661)
QD Mount for Aimpoint Micro Sight. Gets the Micro down low to use on Shotguns, PS90's and AK's

 

That looks pretty high already.
These are regular “medium height” rings, perfect for regular rifles but very low for the AR.


And then this is the replacement AR cantilever setup that’s 1.59”.

 

Gun has no iron sights.

 

What;s the measurement from the top of the stock to the bottom of the eyepiece on the 2nd pic?

 

It’s right at 1 3/8”

 

@CurtB those look like UTG or leapers mounts

 

Thanks. Mine is 1 1/4 still too low for me. My face is scrunched against the stock and slimline muffs grind against it. I may have to research cantilever mounts. The scope could be just a little more forward.

 

Nah, they're Amazon mounts.

 

might look goofy but maybe a rail riser and then higher scope mounts
https://outdoors.natchezss.com/bestsellers/Picatinny-Riser

 

Might work. Thing is I need to figure out how much higher I need the scope, and no higher than that.