Parts & AccessoriesAccessoriesDaniel Defense MFR Rail 9.0 M-LOK Black

Daniel Defense MFR Rail 9.0 M-LOK Black


Product Description

Daniel Defense MFR Rail 9.0 M-LOK

The MFR Rail Systems from Daniel Defense utilize the M-LOK attachment system for incredible weight savings as well as superior cooling, ergonomics, and modularity while maintaining the strength and durability expected from Daniel Defense. M-LOK attachment points are located along 7 positions on the rail and feature an uninterrupted 1913 Picatinny rail on top.

Ambidextrous sling swivel attachment points are integrated into both the left and right side rails. Its sleek bolt-up system increases strength and reduces the overall diameter of the rail making it easier to control, all while utilizing our Bolt-up System barrel nut. Anti-rotation tabs come standard for ease of installation and alignment. The MFR can be used with a pinned low-profile gas block on pistol, carbine, mid-length or rifle length gas systems.


  • Light Weight Free Floating Barrel Design

  • Steel Barrel Nut

  • Uninterrupted Mil-Spec 1913 Picatinny Upper Rail

  • M-Lok attachment at 7 different positions

  • Configurable Sling Swivel Attachment Points

  • Patented Bolt-Up Mounting System

  • Grade 8 Military Specification Fasteners


  • Material: Aircraft Grade 6061-T6 Aluminum

  • Finish: Military Specification Type III Hard Coat Anodized

  • Weight of Rail = 5.4 oz

  • Weight Installed = 7.6 oz (with Mounting Hardware)

  • Made in the USA!


Bolt-Up System Barrel Nut Wrench (Supplied)

Allen Wrench (Supplied).

Features and Specifications:

Product Weight: 5.4 oz

Rail Length: 9.04"

Width: 1.56"

Height: 1.995"

Inside Diameter: 1.39"

Barrel Nut: Steel (For Patented Bolt-Up System)

Gas System: Carbine

Free Float: Yes

Continuous Upper Rail: Yes

Integrated Sling Swivel Attachment Point: Yes

Manufacturer: Daniel Defense


SKU: 01-107-15140


Daniel Defense is a family owned and privately held firearms manufacturer located in Black Creek, Georgia. Founded in 2000 by President/CEO Marty Daniel, the company was born from Marty’s vision to create custom rifle accessories for his personal rifles. Eighteen years later, Daniel’s concepts have evolved into one of the most recognizable brands in the firearms world, consisting of the world’s finest AR15-style rifles, pistols, bolt-action rifles, and accessories for civilian, law enforcement, and military customers. At Daniel Defense, we celebrate the liberty of our country, the enthusiasm of our customers and employees, and the quality and accuracy of our products. 

Since selling our first AR in 2009, we work each day to deliver products unmatched in quality, precision, and world-class customer service. From our inception, the company has striven to control every facet of production and today makes nearly every component part it sells. This differentiates us from many industry players who basically assemble rather than build their products. From being one of the first in the industry to use a cold hammer forging process to build the world’s most accurate and durable barrels to using our own in-house robotic Cerakote finishing line, Daniel Defense aims to control its own destiny to better serve our customers and consumers. This was only enhanced in 2017 when the company moved into its state-of-the-art 300k square-foot manufacturing facility. By leveraging our design and manufacturing efficiencies we’ve successfully been able to provide consumers custom quality products at a great value. For consumers, this means that all Daniel Defense products will feature:

  • Built-in durability and accuracy

  • Rich feature sets that don’t come standard in production products

  • Modularity - the ability for the end user to customize the product

  • Great design/style

  • A lifetime satisfaction guarantee

"We love making high quality products and, quite simply, care about our customers more than any of our competitors do. That’s what got me started in this business back in 2000. I like well-made products – products that exceed expectations for accuracy, durability, reliability, style, and value. We know how much our customers care, and that’s what makes working in this business so much fun. Thanks so much to all of our loyal customers, and for those of you new to our brand. Isn’t it time you got a Daniel?"


Building the best isn’t something we try to do. Trying is for those that have the option to fail. We build the best because it’s part of our DNA. We’re genetically coded to make sure that every firearm and accessory stamped with the Daniel Defense name is the absolute best it can be before it ever winds up in your hands. And once there, you’ll feel the quality and workmanship – the Daniel DNA – all the way down to a molecular level.

Product Details
Daniel Defense