2 piece rings for flat-top receivers, rule of thumb?

skeetgunner

skeetgunner

CGN Ultra frequent flyer
Rating - 100%
17   0   0
Location
Burlington
When selecting two piece bases (Weaver, Burris, Leupold etc.) for a flat-top upper, is there a general rule of thumb for choosing the correct ring hieght for size of scope?

Something like, 28mm scope bell, use low-rings, 30-40mm scope use med-rings, 40-50mm scope, use high rings etc.....

What's the CGN consensus?
 
My thoughts,,,, making the assumption you are talking about AR15 flatops,,

1. If you have a front site,, then it is important that you get the centre of the scope up fairly high. You want it so that it is pretty well in line with the iron site. If it is lower that that,, then you get too much of a front site shadow. Higher than that and you end up with little or no cheek weld with the standard stock.

2. High or low,, you may end up with trouble getting a proper check weld,, so use whatever rings that get the centre of the scope approx 2.75 inches from the centre of the bore. This is about the hite of the iron sites.
 
I scoped mine, Phil at P&D said to try some 1 inch rings to start and if there is a problem, come back and try something taller. It wasn't a problem, you actually don't even see the front sight post at all, you look right through it, even when I reduce the magnification to 3.

Now, with the cheek weld, that could be the deciding factor. I myself didn't have a problem with the 1 inch rings. My buddy didn't like to squish his face so close because he's a bigger boy than I am and its kind of uncomfortable for him. So he bought a riser for his. Puts it up a half inch or something and he's much more comfortable with it.

Hope that helps. :wink:
 
I tried Weaver extra high rings and they were not high enough to get a proper cheek weld. I use an ARMS 35 mount with ARMS 35 medium rings now.
 
I've had super success with mounting my Leupold 3.5 x 10 x 40mm Tactical using Millett Angle-Loc HIGH and EXTRA HIGH rings in the past. :roll: I've even won my DCRA Gold Medals (NSCC) using this combination. I ain't in a position to make fun of Millett Angle-Locs when they had served me so well.

I've also had success using Weaver Low and Med rings mounted on an ARMS Riser block specifically designed for AR flat tops.

Skeetgunner, PM if you are looking for said solutions. :wink: I might be able to help you out. After all , you are one of the most loyal supporters of my 21 Aug ORA Fun match. I know what you are looking for.

Cheers,
Barney
 
Would this work?
MNT-002-AR-15-Riser.jpg
 
FWIW, there's NOTHING wrong with using Millet rings on an AR. After all, the AR recoil is so mild even cheapo aluminum weavers will work well. Main problem with Millets is I would be concerned the steel claws would mar the finish on the Aluminum flat-top. If you use a cheap aluminum riser though, who cares! :twisted:

the high-dollar rings like ARMS 22's have special aluminum claw inserts so as not tu gouge your Aluminum uppers, but they cost ALOT more.
 
Prproulx:

YES, that's what I'm talking about ! Use one of those with the med / low Weaver rings and that should sort out the cheek weld situation. All of us have differently sized cheeks and or facial geometry.

By using such an aluminum riser, that would allow you to get away with using your existing inventory of Weaver rings or Millett Angle-Locs or Burris Z rings or whatever is kicking around your spare parts bin. :roll:

I don't suggest rushing out and buying a series of high and extra high rings (yet). At least with the flat top riser adapter, you can use what you have and see what works for you. Marstar has them in stock. Sure beats ordering from the US.

Cheers,
Barney
 
Thanks for the tips guys. I'm looking to mount a 4-12x40mm Elite on my flatop AR upper. There is just a gas block, its a target style barrel, so there's no interference from the front site.

Sounds like the 1" high Burris Sig's I have in the spare parts bin might be enough to get me going. If cheek-weld becomes an issue, sounds like my options are to add a riser or convert to an ARMS mount; likely next year.
 
You must log in or register to reply here.
Back
Top Bottom