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5/11/2008 11:06:30 AM EDT
I've got a Bushmaster Modular Carbine that came equipped with a set of Yankee Hill back up iron sights.  Now I have the Trijicon tritium lamps to replace the original apertures with.  And while the front sight was a breeze, I can not figure out how to replace the rear aperture.



Can someone guide me through this?
5/11/2008 2:27:55 PM EDT
[#1]
I’ve never personally played with a YHM BUIS. But, most rear sights are built off the standard GI rear sight design and utilize mostly the same parts. This diagram below might help with disassembly of your BUIS.

5/11/2008 2:36:30 PM EDT
[#2]
Danke, QUIB.  Now I wonder what size punch I'll be needing to knock that pin out with?
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