RXArms I appreciate the response - it was indeed normal.
I received my beautiful C-stock today and it was everything I hoped for and more. It installed easily and lined up almost perfectly with the rear sight/ receiver. Good to know my worries were unjustified. My m4 has reached its full potential.
Damn skippy! Thank you for providing another overdue, excellent & practical-application item for our M4’s!! This will micro-adjust the comb height of my stock in the middle position using Trijicon SRO w/Scalarworks mount. I’ll be ordering two when available..thanks again!