I took my 300 Black Out AR-15 to HRH Combat Arms and was very pleased with the customer service, information provided on their services and pricing. They insured we had the colors selected that would give the look I was going for. Using both H-Series and C-Series Cerakote I now have a coating that not only protects my rifle but my suppress too. The quality of work and attention to detail showed their dedication to their work. I highly recommend them and will have them coat future firearm projects. Gene.