Dude these guys Rock! I can't wait to shoot my new 6.5 Grendel upper Assembly on my custom built lower AR-15 platform! WOW these guys hooked me up with Cerakote because the wait. It was a COVID thing and they couldn't get parts. Now I'm building an AR-10 and going to have them build my upper in 308 caliber! That will be my deer hunting weapon no of choice. Gotta get her built this summer and sighted in by Late August. HOOO Army Style! Thanks guys and gals!! You guys Rock!