M-LOK is Magpul’s modular attachment standard for handguards and fore-ends. Rather than a full-length rail, accessories bolt directly into M-LOK slots, keeping the handguard slim and light.
Also called MLOKMagpul M-LOK
The M-LOK standard at a glance
- Type
- Handguard / fore-end attachment
- Key spec
- Direct-attach slot system (Magpul)
Compatibility
M-LOK and KeyMod are not cross-compatible. M-LOK has become the dominant modular handguard standard — accessories attach directly, or via a short Picatinny rail section.