Smyth Busters: M-LOK vs. KeyMod - Which is Better?
This video compares M-LOK and KeyMod accessory mounting systems for AR-15 platforms. M-LOK utilizes T-nuts in rectangular slots, locking via a 90-degree rotation, while KeyMod uses keyhole slots for a slide-and-fasten method. Both are lighter and lower profile than Picatinny rails. M-LOK is generally considered sturdier, especially for maintaining accessory zero, and has seen wider adoption due to SOCOM testing and increased accessory availability.









