red dot + magnifier

This is my diy red dot magnifier, I'm using an archery 8x magnifier lens resize to fit a red dot sight. the last 2 picture shows the difference as you look at the green masking tape as the target, I don't think it will work for a 100 yard, but work well at the closer range

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I mounted a red dot on my pp700 pistol/carbine...love it. Wanted more magnification for 30 yards shots so ordered a doubler but have not received it yet. I also ordered a knock off Leupold d evo with lco red dot. Mounted both these on this carbine and it is...heavy but I love it. Time will tell if I keep it but I plan to as I enjoy the red dot and wanted more magnifacation and this setup does both.
Just another option. 
note these knock offs might not hold zero.so far so good here, time will tell. Expensive but solved my problem.