The railing system isnt that good - Magpul Industries MBUS Front Flip-Up Back Up Sight Gen 2

While it is a good idea to have a sight system that goes up quickly, the fact is that the part that connects to the railing system is one part. That is not good. Also everything is made out of plastic (hard plastic). The front sights move a little even when the piece is screwed down. The back sights windage adjuster is hard to move. I had to use a screwdriver. In order to change from the smaller hole to the bigger hole i had to use a screwdriver(windage). It is a good idea with bad material/ railing.