Ok, I tried to search this but didn't find anything. I have an AICS AX chassis on a Rem 700 AAC-SD and ordered a 10 round .308 magazine that the description said it was for a .308 AX AICS. I am trying to plug it in the mag well and it won't fit. It seems like the feed lips are to wide. It's a staggered magazine so, it's short and wide. I went back to Mile High's site and found there are two different AICS AX .308 10 round magazines that say the fit. I noticed two different part numbers. What gives?? Any info you guys have will help. Thanks....