Just how good are Magpul‘s rear Back-Up Sights (MBUS) and do you need to replace them or not on your AR-15? In this video, we help answer this question as well as discuss alternatives to the MBUS – including the Troy Folding Rear Battle Sights.
Also see our iron sight accuracy comparison test video at:
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Great video.
The best and simplist explanation.
All steel? Troy never built a sight out of anything but an aluminum body to the best of my knowledge. Magpul uses steel on the pro series, griffin does also. Most that you mention are aluminum. BTW S&W sights you mentioned were built by Troy. I have a set of Troy sights etched with the M&P logo.
Excellent. I am looking for a BUIS and this video helped a lot.
Question does the rear sight have to be seated all the way to the rear? Or according to your comfort?
Very thorough discussion
Good review.