I bought this riser to co-witness my FastFire with the iron sights on an AR15 forward carry-handle mount. It did not come with the required longer screws from the factory. Burris wanted to know why I needed the screws when they come with the SpeedBead? Well, so do the risers. So why else would someone buy this accessory, and need the screws, unless you were going to use it on a FastFire.
Pros: Well constructed
Cons: No screws provided
This review was written in the old system and had content requirements that are different than reviews written today.