Went to the range today and fired off 450 rounds of CCi Blazer Brass. I noticed something odd and wanted to run it by the "community" here to see if what I think might be wrong is actually the case. I just bought a new Insight Technologies M6 weapon light. I fired about 100 rounds through the weapon without the light attached to get warmed up and find my groove. I attached the light and began firing and immediately had failures to feed on all 4 magazines. The magazines are stock springs and all have Pierce +1 extensions on them. As soon as I removed the light, the failure to feed issu was eliminated. So, my question is this: -Do I need to install aftermarket magazine springs in order to use my weapon light with out failures? -If so, should I use Wolf +10 magazine springs? -If I use stronger mag springs, will there be any problems with feeding if I shoot WITHOUT the weapon light attached? Any and all feedback will be welcomed and appreciated.