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Posted: 8/4/2014 4:25:19 PM EDT
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I have a Bushmaster A1 Upper Receiver with the A1 Carry Handle obviously. I do not like the rear aperture, and I was wondering if I could install a XS Sights CSAT A2 rear aperture?
So the main question is if A1 and A2 rear apertures are interchangeable. Thanks! |
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