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Old November 13, 2010, 11:44 AM   #1
Lemmon
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Join Date: December 25, 2009
Location: Rural South Carolina
Posts: 409
Help: How tall should my Scope Rings be for AR15 A-3 flattop upper?

Need Help: How tall should my Scope Rings be for AR15 A-3 flattop upper?

Just purchased from Midway a "DPMS AR-15 A3 Flattop Upper Assembly 223 Remington 1 in 9" Twist 20" Bull Barrel Stainless Steel with Free Float Handguard
Product #: 486925

How high should my scope rings be for a 3X9X50 1" tube scope? Don't want it higher than needed but no so low as to be unusable. I am looking at Burris or Weaver brand Picatinny-Style Rings. Any additional thoughts or suggestions would be great.

My choices are:

Ring Height: .520" (measured from base of ring to bottom of scope tube)

Ring Height: 3/4" (measured from base of ring to bottom of scope tube)

Ring Height: 1" (measured from base of ring to bottom of scope tube)

Thanks,

Lemmon
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Old November 14, 2010, 12:41 AM   #2
hoghunting
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Join Date: March 27, 2006
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I use the Burris XTR rings that are 1" high. The 3/4" is just a little too low.
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Old November 14, 2010, 07:08 AM   #3
Toolman
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Join Date: April 7, 2006
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According to the Midway USA scope ring height guide, a 1" tube scope with a 50mm objective, ring height should be at least .270".
A 30mm tube with a 50mm objective, ring height should be at least .300".

I have always mounted my scopes as close to the barrel as possible, but with my flattop I couldn't get a good cheekweld with the scope that low. I ended up putting a .50" riser under the scope rings and have been very happy since.
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Old November 14, 2010, 09:32 AM   #4
Lemmon
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Join Date: December 25, 2009
Location: Rural South Carolina
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Thanks, I ordered the Burris XTR 1" rings this morning.

Thanks all, I ordered the Burris XTR 1" rings this morning. I trust the Burris product as being a very good product. I will post my results once I get all the parts together.

Lemmon........
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