I recently acquired a Charles Daly M4LED. A nicely finished and detailed gun, with the worst accuracy I ever though a AR could get. To make a long story short, before I send it back to the CDD, I'd like to do a quick headspace check. MidwayUSA is out,a dn Brownells runs for $52. Is anyone out there willing to let me borrow yours for a minute? It will not even leave your sight.