The Magpul MAG591-BLK M-LOK Polymer Rail Section provides a lightweight method to add a 1913 Picatinny interface to M-LOK compatible hand guards and forends. It is injection molded from a proprietary reinforced composite to balance strength and low weight. The rail section features beveled ends to reduce snagging and eliminate sharp corners. All hardware necessary for attachment to M-LOK slots on either aluminum or polymer hand guards and forends is included.
Key Specifications
- The finish is Black.
- The material is Polymer (reinforced composite).
- The model is M-LOK Polymer Rail 7 Slots.
- The product type is Rail.
- The fit is for M-LOK Hand Guard.
- The length is 3-3/10 in with a maximum overall length of 3.3 in.
- The section provides 7 Slots to accept 1913 Picatinny-mounted accessories.
- The listed make/model compatibility is AR-15.
- The style provides a Picatinny interface.
- Includes all hardware necessary for direct attachment to M-LOK slots.
This compact rail section expands mounting options on any M-LOK compatible hand guard without adding undue weight or bulk. Its reinforced polymer construction and beveled ends minimize snagging while providing a secure platform for lights, grips, and other Picatinny accessories. Ideal for modular builds and targeted accessory placement where a short, durable rail segment is required.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




