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9/22/2017 12:11:25 AM
Posted: 11/24/2003 7:53:43 AM EDT
I want to use these on my Flattop AR.
I have a #40 rear sight mounted.
A1 buttstock.
Will I need the High version to clear it,
or will the medium work?

( Haven't chosen a scope yet , but it will
probably be a normal 3-9x 40 ,not a monster
scope )
Link Posted: 11/24/2003 10:51:51 AM EDT
[Last Edit: 11/24/2003 12:35:36 PM EDT by 223Rem]
ARMS #22 High Rings. Mounts the scope @ 1.450" center line. These are 30mm rings, so if you use a 1" scope (not too many 3-9 mag scopes with a 30mm tube), you will need the inserts. You could use the medium rings but it would require you to mount the scope in front of the #40. You will mostlikely run into a spatial problem (run out of mounting room) on the flattop. The #22 medium rings mounts the scope at 1.150" center line. The #40 is .950" above the flattop. This means the #40 will only be .20" from the center line of your optics. This could cause a somewhat obstructed view. Your best bet is the #35 Track Mount Base and #35 Medium Rings (It's $30 dollars more but worth it). The base will give you another 1.13" of mounting space and the medium rings will give the scope a 1.250" center line off the flattop. This system adds a bit more weight to the rifle, but is much more effective, IMHO.
Link Posted: 11/24/2003 11:04:50 AM EDT
The centerline is the same 30mm or 1", the scope still sits in the midle of the ring. Mediums are usually used if they are going on a 36 or 38 rail, high if they are going right on the flat-top.
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