Thank you very much for the photos showing your technique to install the MOE handguard. It is a VERY useful response. I did write back to GG&G asking about why their standard BUIS flip rear sight would not work well with the AR-10. I received another VERY useful and courteous response... When I say "fold around" I am speaking about the "ear" or rear tab above the charging handle that is narrower than the rail itself. Its hard to explain so I'll use pictures. The AR10 is on the right and a AR15 on the left. See the flat area above where the charging handle would be, It is shorter and wider on the AR10 This picture shows how the A2 sight folds around this area on a AR15. [img width=810 height=607]http://i1125.photobucket.com/albums/l590/RowlandParks/009-1.jpg This picture shows how on a AR10 it can not fold down because the receiver is wider and shorter. [img width=810 height=607]http://i1125.photobucket.com/albums/l590/RowlandParks/011.jpg This picture shows how well the MAD rear sight sits on a AR10. It lays flat and overhangs the receiver so it is easily deployed even with gloves on. [img width=810 height=607]http://i1125.photobucket.com/albums/l590/RowlandParks/012.jpg Feel free to email or call me if you have more questions. That's what I'm here for. Shane Worley Product Specialist GG&G, Inc. Shane Worley has been prompt, courteous and extremely helpful in his responses. I'm now sold on the GG&G Flip Up Front Sight for the AR-10 and the GG&G MAD BUIS for a rear sight.