Keymod vs M-Lok testing

Crane did some extensive testing on these two systems. Thought the results might be a good read:

https://ndiastorage.blob.core.usgovcloudapi.net/ndia/2017/armament/McGee19427.pdf

https://www.m4carbine.net/showthread.php?195184-NSWC-Crane-Testing-of-Modular-Rails-for-SOCOM