Magpul dummies - Magpul Industries Dummy Rounds 5.56x45 5 Pack Black

I got these for the name because my orange (probably imported) ones constantly fail to feed on misfire drills. Mix 10 in with 500 rounds and you're good to go. Not one failure so far and they don't sound hollow like the others, so you really are surprised when they chamber As I was wiping them it occured to me that they would make an awesome keychain or necklace for gifts, so I ordered more to try it. I couldn't be happier with the practice now.