I got the sheaths put together just in time for this weekend. We will be going camping with our friends and the young Marine. Just in time before he ships out, and he will have a chance to pick his rig out.I made kydex inserts for the bigger sheaths and the RMD and 511, I tried something a little different. I tried a "Taco" "Pancake" hybrid. I perfer the sheath opening of the taco style, but wanted some rivets on both sides for molle clips or tie downs. Retension is great and secure for all of them. Here ya go.