The Magpul M-LOK Aluminum Rail Section (MAG581-BLK) is a 5-slot, 2.5-inch Picatinny rail section machined from mil-spec anodized aluminum, built to add M1913 Picatinny accessory mounting capability to any M-LOK compatible handguard or forend. This M-LOK to Picatinny rail adapter is a practical choice for AR-15 builders, tactical rifle shooters, and hunters who want to run lights, grips, or bipods on an M-LOK handguard without replacing the entire system.
Key Features
- Manufacturer part number: MAG581-BLK
- UPC: 873750001661
- Rail type: M1913 Picatinny, 5 slots
- Overall length: 2.5 inches (maximum)
- Material: Mil-spec anodized aluminum
- Finish: Black anodized
- Mounting system: M-LOK direct attachment with cammed T-nuts
- Mounting hardware: Included
- Compatibility: Fits all M-LOK compatible aluminum and polymer handguards and forends
- Country of manufacture: Made in the U.S.A.
- NSN: 1005-01-666-0498
Special Features
- Cammed T-nuts lock directly into M-LOK slots and tighten with a quarter-turn motion, creating a secure, tool-assisted attachment without requiring modifications to the handguard.
- Recoil and impact mitigation lugs are built into the rail body, distributing force evenly across the M-LOK interface and preventing the section from walking or shifting under hard use.
- Beveled ends on both sides of the rail eliminate sharp corners that catch on gear, slings, or bags during handling and field carry.
- Machining from mil-spec anodized aluminum gives the MAG581-BLK the rigidity needed to support full-size accessories such as vertical grips and bipods without flex or deflection under load.
- All mounting hardware ships with the rail section, so installation on an aluminum or polymer M-LOK handguard requires no additional purchases or trips to a hardware store.
Practical Benefits
- Shooters running an M-LOK handguard who want to mount a weapon light for home defense or low-light range work can add this section at the 3, 6, or 9 o'clock position and have a full Picatinny interface ready in minutes.
- Hunters who carry bipods with Picatinny mounts can use the MAG581-BLK to add a dedicated bipod attachment point to the underside of any M-LOK forend without swapping out the entire handguard.
- Competitors and trainers who reconfigure their rifles for different courses of fire will appreciate that the section installs and removes quickly with basic hand tools, making layout changes fast between stages.
- The 2.5-inch footprint keeps the addition compact, so you get the mounting surface you need without extending your handguard profile or adding bulk at the muzzle end of the rifle.
- Your M-LOK handguard becomes a fully flexible platform when you add the Magpul MAG581-BLK, giving you the Picatinny interface your accessories require without committing to a full rail handguard.
The Magpul M-LOK Aluminum Rail Section (MAG581-BLK) is a smart addition for any AR-15 shooter or builder who needs a durable, low-profile Picatinny mounting solution that works directly with their existing M-LOK handguard setup.
| MANUFACTURER | MAGPUL |