thumb|Magpul MOE M-LOK handguard on a user-assembled AR-15 style rifle|AR-15 semi-automatic rifle M-LOK, for Modular Lock, is a firearm rail interface system developed and patented by Magpul Industries. The license is free-of-charge, but subject to an approval process.
thumb|Magpul MOE M-LOK handguard on a user-assembled AR-15 style rifle|AR-15 semi-automatic rifle M-LOK, for Modular Lock, is a firearm rail interface system developed and patented by Magpul Industries. The license is free-of-charge, but subject to an approval process.
M-LOK allows for direct accessory attachment onto the "negative space" (hollow slot) mounting points, and is a competing standard to VLTOR's open sourced KeyMod system for replacing the ubiquitous Picatinny rail in some applications. Both M-LOK and KeyMod enable the user to have a slimmer, lighter, smoother and more fenestrated handguard/fore-end with accessories and gadgets mounted only where needed as compared to a Picatinny handguard, which typically has whole length rail slots, resulting in a heavier weight, bulkier handguard and poorer barrel ventilation, resulting in the barrel overheating more quickly.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).