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M LOK Picatinny Rail

Magpul Polymer Picatinny Rail Section for M-LOK – 4 Lengths – 3, 5, 7, 9 or 11 Slot


Out Of Stock

90 Day No-Hassle Returns We Pay Return Shipping

We have a 90-day no-hassle return policy. We pay return shipping.

If you need to request a return, contact us at support@at3tactical.com and we will send you a return label

After 90 days, defective items will still be covered under the manufacturer’s warranty, where applicable.

Please refer to the product listing for warranty details. If you have specific warranty questions, contact us at support@at3tactical.com. We may direct you to pursue your warranty claim directly with the manufacturer.

Your satisfaction is our #1 priority

If you’re dissatisfied with your purchase, in any way, please contact us at support@at3tactical.com – we will do our best to make it right.

Fast & Free Shipping On orders over $50

You will receive fast, free shipping for all orders over $50

Shipping cost is $7.99 for orders under $50. We ship with UPS or USPS, depending on the item.

Most orders received by 1pm CST ship the same day

You will receive an email with tracking information at the time of shipment. To expedite shipping, we may ship your order from multiple warehouses. Orders placed on weekends, holidays, or after 1pm will ship the following business day.

Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Polymer Rail Sections provide a cost effective method of attaching various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc.

Injection molded from a proprietary reinforced composite for enhanced strength and durability while remaining lightweight, Rail Sections also feature beveled ends to reduce snagging and eliminate sharp corners and edges.

All hardware necessary for attachment directly to M-LOK Slots on either aluminum or polymer hand guards and forends is included.


  • MAG589 – 3 Slots, max overall length of 1.6 in.
  • MAG590 – 5 Slots, max overall length of 2.5 in
  • MAG591 – 7 Slots, max overall length of 3.3 in.
  • MAG592 – 9 Slots, max overall length of 4.1 in.
  • MAG593 – 11 Slots, max overall length of 4.9 in.

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Customer Reviews

Based on 3 reviews
Gets the job done.

Good rail piece and fits the M-Lok perfect.

Thanks for sharing your feedback, John. We're so glad you're satisfied with your purchase. Cheers!
Picatinny Rail

Just the right size. Gets the job done.

Thank you for the feedback, Elliott! We appreciate it!
Great adaptability, just what you need, only where you need it.

These affordable Magpul M-LOK Picatinny rail sections allow you to mount what you need where you need it; without covering you entire weapon in sharp toothy rails. I like that they can be moved from one mount point to another easily as gear or preferences change, great adaptability.