M-LOK

: A low-profile attachment method for optics and accessories on rifle handguards, M-LOK has recently become the standard for most modern sporting rifles and bolt guns. Developed by Magpul, M-LOK is an evolution of the Magpul Original Equipment attachment system, or “MOE.” Like Keymod, M-LOK is a series of slots machined into firearm handguards that allow accessories to be locked on through the “dead space” of the slot. This eliminates the need for long sections of M1913 Picatinny rails, making for a slimmer, lighter profile of the firearm. M-LOK has largely become the standard attachment method for AR-style rifles and modern precision rifles.