Hi all. I'm new to THR and new to having a C&R FFL. I'm confused on one issue. I have seen some folks selling sporterized 91/30's as C&R eligible. I have read that for a military firearm to be C&R, it has to be in it's original configuration. I know that this applies to C&R guns less than 50 years old (example - Albanian SKS). Do these 91/30's retain C&R status regardless of modification since they are over 50 years old? Any C&R experts that can help me clear this up? Thanks!