Bushmaster AR15 peep sights

[zammyman]

I have a Bushmaster XM15-E2S as shown below, and I'd like to remove the scope, replace with peep sights. How would I configure and attach the sights on this, especially the front sight? Secondly, where would you recommend I purchase the sights from?
Thanks!

 

[Rubber_Duck]

You're pretty much stick with optics unless you replace the gas block with a front sight (either standard or of the flip-up type).

 

[highorder]

You can also swap out the free float tube to a 4 rail free float tube and mount a sight on the end of the tube. Get a BUIS and you will be all set.