The stirrup and all internal parts are blued. Here are 2 pics of the old and new marks. I couldnt figure out how to paste them to the reply.
<a href="http://forums.lugerforum.com/lfupload/xd_out_unit_copy1.jpg" target="_fullview"><img src="http://forums.lugerforum.com/lfupload/xd_out_unit_copy1.jpg" width="400" alt="Click for fullsize image" /></a>
<a href="http://forums.lugerforum.com/lfupload/new_unit.jpg" target="_fullview"><img src="http://forums.lugerforum.com/lfupload/new_unit.jpg" width="400" alt="Click for fullsize image" /></a>