KeyMod vs M-Lok
Not a bad article at all from Field & Stream on KeyMod versus M-Lok.
The KeyMod system was invented in 2010 by VLTOR Weapon Systems and Noveske. Its commonly found on the forends on AR-15s and AK-pattern rifles. VLTOR and Noveske designed the system to give a user flexibility in terms of what kinds of accessories they want to attach to a gun and where. They made the system open source so any company could produce it.
Keymod rails are covered in keyhole-shaped slots in a uniform pattern. Each hole has a larger end and a smaller end. To attach an accessory or rail, you place studs (which comes with KeyMod-compatible accessories) in the larger hole, slide the accessory forward, and screw it into place. The studs lock the accessory or rail to the KeyMod forend, and when properly installed, it will not move under recoil.
In a nutshell, that’s why I prefer KeyMod over M-Lok. Ease of installation. I find having to grab the nut underneath the rail to ensure that the screw isn’t spinning on M-Lok attachments supremely annoying, and I’ve had them come loose before.
But to each his own.
