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Questions & Answers
Will this fit a Daniel defense MK18? Expert Answer

The Geissele MLOK MK14 9.3 Inch Super Modular Rail can be used on a Daniel Defense MK18.

by Hunter, Gear Expert, July 13, 2022
Does the top rail match up flat with the Geissele super duty upper receiver? Expert Answer

Yes, once the Geissele MLOK MK14 9.3 Inch Super Modular Rail is installed it should line up flush with the Geissele Super Duty upper receiver.

by Hunter, Gear Expert, February 11, 2022
Customer Reviews
Helpful Positive Review
bomb proof rail. by Milhouse, Verified Owner, August 22, 2020
Fit and finish is flawless. Still wish they provided the gas blocks at least with these. Diameter feels perfect sized compared to other hand guards on the market. DDC is a great color to choose. Anti roll pins don’t mar the finish of my build.
2/4 found this helpful
Helpful Positive Review
Awesome rail by Matk, Verified Owner, October 10, 2018
This is a solid rail. Easy installation, rock solid hold. No need to time the barrel but, which saves some time. The anti-rotation set screws stick out a little, but your hand never really goes near them, so it’s not too big a deal. The M-Lok slot on...
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2/2 found this helpful
Helpful Positive Review
great rail by Andrew, Verified Owner, October 2, 2020
Excellent rail. Very high quality. Install was easy. I like that it comes with a low profile gas block as well. The gas block alone has close to a 50 dollar value. Geissele is the way to go. I have two of these and I’m very happy with them.
1/2 found this helpful
Helpful Negative Review
Buy the Geissele Barrel Wrench by Toggle Jockey, June 16, 2020
Received MK14 without any way of mounting it to the weapon because it didn’t come with the barrel nut spanner wrench/plate. Had to go back and order the special Geissele barrel but wrench for $13.29. I’m giving it 3 stars because “I’ve Heard” it’s a ...
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2/3 found this helpful
Most Recent Reviews
Have Bill call me... so I can tell him how stingy he is. Is this handrail cool, lightweight and everything everyone says yes. Would I buy another one? Probably not. There’s plenty of options out there that are cheaper, same material and will work the...
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14/24 found this helpful
Most Recent Reviews
Received hand guard in timely fashion. No barrel wrench or instructions. Barrel nut was wedged in hand guard. Had to use an older upper to grab enough thread in barrel nut with lithium grease and heat to remove, so I could install on AR pistol I was ...
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1/18 found this helpful
Read All 14 Reviews
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made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Geissele Mk14 M-Lok Super Modular Rail

The Geissele MLOK MK14 9.3" Super Modular AR Handguards & Forends is an updated version of the proven Geissele Barrel Nut design, providing ease of installation and superior rigidity. Utilizing Magpul's M-LOK technology in the 3, 6, and 9 o'clock positions allows the end user full customization and modularity of their rifle to securely mount lights, bipods, and other firearm accessories. image

WARNING: California`s Proposition 65

Specifications for Geissele Mk14 M-Lok Super Modular Rail:

Manufacturer: Geissele
Finish: Type 3 Hard Coat Anodized
Fabric/Material: 6061-T6 Aluminum
Gun Make: AR Platform
Gun Model: AR-15
Gun Type: Rifle
Condition: New
Inner Diameter: 1.27 in
Outer Diameter: 1.52 in
Height: 2.02 in
Mount Type: M-LOK
Country of Origin: USA
Quantity: 1

Package Contents:

  • Geissele MLOK MK14 9.3 Inch Super Modular Rail

Geissele Mk14 M-Lok Super Modular Rail Orderable Models

List of Orderable Models

  • Geissele MK14 Super M-Lok Modular Rail, 10.5in, Black, 05-1658B , MPN: 05-1658B , UPC: 810081130110 , Code: 1TO-HZ-RS624-05-1658B
  • Geissele Super Modular Rail, M-LOK, MK14, 9.3in, Black, 05-578B , MPN: 05-578B , UPC: 817953022511 , Code: 1TO-HZ-RS624-05-578B
  • Geissele Super Modular Rail, M-LOK, MK14, 9.3in, Desert Dirt, 05-578S , MPN: 05-578S , UPC: 817953022528 , Code: 1TO-HZ-RS624-05-578S
  • Geissele MK14 Super M-Lok Modular Rail, 10.5in, DDC, 05-1658S , MPN: 05-1658S , UPC: 810081130103 , Code: 1TO-HZ-RS624-05-1658S
  • Geissele Super Modular Rail, M-LOK, MK14, 15in, Black, 05-575B , MPN: 05-575B , UPC: 817953022559 , Code: 1TO-HZ-RS624-05-575B
  • Geissele Super Modular Rail, M-LOK, MK14, 13.5in, Black, 05-573B , MPN: 05-573B , UPC: 817953022535 , Code: 1TO-HZ-RS624-05-573B
  • Geissele Super Modular Rail, M-LOK, MK14, 13.5in, DDC, 05-573S , MPN: 05-573S , UPC: 817953022542 , Code: 1TO-HZ-RS624-05-573S
  • Geissele Super Modular Rail, M-LOK, MK14, 15in, DDC, 05-575S , MPN: 05-575S , UPC: 817953022566 , Code: 1TO-HZ-RS624-05-575S

Geissele Mk14 M-Lok Super Modular Rail Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Geissele Super Modular Rail, M-LOK, MK14, 9.3in, Black, GEI05-578B , MPN: 05-578B-EDEMO , Code: 1TO-HZ-RS624-GEI05-578B-EDEMO-US-C
  • Open Box, Dealer Demo, Geissele Super Modular Rail, M-LOK, MK14, 9.3in, Black, GEI05-578B , MPN: 05-578B-DMO , Code: 1TO-HZ-RS624-GEI05-578B-DMO
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