You can get actual HK 416 sights from them. I have two different sets for two of my rifles (one set on an 11" barrel and another set on a 16" barrel). I mention this as there are are different height rear sights based on barrel length. If your using a 16" barrel, the 14.5" rear version is what is recommended. Also, if you go with the HK 416 sights, they are slightly shorter than standard AR sights (as the HK 416 rail is built up slightly higher). It can make a difference in height of co-witness with optic mounts. LaRue tactical has mounts that are correct height for co-witness for actual HK sights. Adam Weber, the owner of HKPARTS is an awesome person to deal with and I've bought thousands of dollars of stuff from him on several occasions. He's a very smart guy and willing to help and provides great service.