M-LOK or Modular Lock is a rail interface system patented by Magpul.  It allows for accessory attachment to the hollow slot mounting points.  M-LOK also allows for a slimmer, lighter, and smoother handguard with accessories mounted only where they are needed compared to Picatinny rail systems.  Check out Daytona Tactical’s M-LOK section on the online store to find one.

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