I put a Vortex 1-10 on a 5.56 AR with an 18” barrel. It sits on a JP extended mount. I verified the mount is level with the base and optic sits level with that. When sighting in, it required coming up 19 MOA. Any thoughts on if the scope itself might be defective, potentially adjusted way low from the factory, or? The only other thought I have is I did add a silent capture spring that may or may not be a bit too light on the spring size. The rifle cycled with zero issues and did not feel like the bolt carrier was hitting back too far. I’ll likely try the original buffer/spring next outing just to confirm, but figured I would seek some advice here on this in the mean time.
