Check out the apeture sight I orderd for my .223 pump. Well as odds would have it my Williams WGRS sight arrived today from the folks at midwayusa.com. This sight will fit the 7615, 7600 and 7400 series of rifles. The unconventonal scope mount is for a 20ga 870 shotgun. The reason for this particular setup is to allow for a much more precice sight picture for using the sights in our local 200/300M rifle matches and yet still retain a scope for hunting and load development and to be able to swap (or use both) between the two without having to rezero.
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As you can see from this pic the sight radius is more than doubled from 26cm to 54cm.
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A pic of the installed sight
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and a shot of how the weaver scope mount clears the new sight.
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A word of advice if you order this sight spring for a smaller apeture when you order. The included apeture is rather large for target work.