I tried to use my new Talon locking lug tool only to find out there is an excess protrusion behind the locking lugs in the chamber that measures approx 1/8 inch diameter by 1/16 inch high. It's located approx 2 o'clock on the right side of the chamber. Attached is a picture that looks thru the magazine well to see the protrusion in the chamber. Does anyone else have the same in their M400 Enhanced?