This is my German engineered Hera Arms 15th Dynamic piston AR15. It has been tuned and colored to my specifications by their codesigner Pro Tuning. I really wanted a more silver grey color then the standard tan or black. I think it makes the gun more futuristic and mean. The gun is quite light and I feel more flexible in target acquisition. I tried both the Sig and HK, but this rifle really felt more comfortable and met my needs the most. For example, ambidextrous safety and much lighter and crisp trigger pull. I am going to post another thread on my range experience today. The magazines are PMAGS. I have one in 20 rounds and one in 2 rounds (hunting regulations). The furniture is made by Magpul. I bought the military standard Eotech XPS 3-2. I have ordered iron sights for cowitness from the lgs, but they will not arrive for a few weeks. This is from their website: Upper Systems: All Upper Systems are provided with a complete Bolt-Carrier-Group and ESS-Germany barrels. Depending on the specific model our Bolt-Carrier-Groups are Duralloy Chromed which is providing a 20% harder surface than usual Chrome, as well as a lower friction rate even when not lubricated. In combination with our IRS Handguard System and the Hera extended barrel nut, all Upper Systems providing a full-lenght top rail without interruption. As a Standard Hera is using heat treated, stress relieved and button rifled ESS-Germany Barrels. In combination with nitro carburization the barrels provide highest quality, longer durabilitiy against uncoated barrels and a rock hard surface. Nitro carburized barrels are suitable for extreme stress but will need a break in time of approximately 500 shots to reach their highest precision.