Originally Posted By Islandboy671:
Does anyone have any pics of where to file or sand the feed lips on the BDM mags. On my last range session, I noticed that one of my mags had more FTEs than the others.
Look for contact marks on the mag lips - that will show where the bolt has been rubbing. Unless you have first generation BDMs, you'll probably find the contact to be mostly on the rear of the right hand side of the feed lips. Sometimes there can be problems with the lips being too tall, but mainly that affected the gen 1 mags.