My Account (Sign in)
Your basket is empty.
0
Basket
contact us by phone Help and contact
Free standard delivery over £199
100-day return policy
My Account (Sign in)
Wish list
Your basket is empty. (0)
Basket
Newsletter Newsletter
Sale

Over 300,000 customers - we say thank you!

4.93/5 "Very good" (1400+ reviews)

40,000+ products for hunting and shooting sports

Rifle Parts Build Kits Handguards & Rails GEISSELE AUTOMATICS MK16 SM RAIL 15" M-LOK FOR AR-15 DDC Support

The Geissele MK16 SMR offers superior rigidity, easy installation, and M-LOK customization for AR-15, crafted from lightweight 6061-T6 aluminum.
-10 %

GEISSELE AUTOMATICS MK16 SM RAIL 15" M-LOK FOR AR-15 DDC

817953028339 100042823

Filters:

Variations
Filters:
Variations:

Variations:

-10 %
The Geissele MK16 SMR offers superior rigidity, easy installation, and M-LOK customization for AR-15, crafted from lightweight 6061-T6 aluminum.
AR-15 MK16 SUPER MODULAR RAILS M-LOK - MK16 SM RAIL 15" M-LOK FOR AR-15 DDC
394.9 GBP 6 £394.90 * £439.90
In stock
Color: DDC Length: 15 Make: AR-15 Material: Aluminum Style: M-LOK Type: Free Float Product no.: 100042823
In stock
394.9 GBP 6 £394.90 * £439.90
-11 %
The Geissele MK16 SMR 13.5" M-LOK rail offers unmatched rigidity, easy installation, and maximum customization for your AR-15 with durable 6061-T6 Aluminum.
AR-15 MK16 SUPER MODULAR RAILS M-LOK - MK16 SM RAIL 13.5" M-LOK FOR AR-15 BLK
374.9 GBP 12 £374.90 * £419.90
In stock
Color: Black Length: 13.5 Make: AR-15 Material: Aluminum Style: M-LOK Type: Free Float Product no.: 100041112
In stock
374.9 GBP 12 £374.90 * £419.90
-9 %
The Geissele MK16 Super Modular Rail 13.5" offers unmatched performance, easy installation, superior rigidity, and maximum customization with M-LOK and Picatinny slots.
AR-15 MK16 SUPER MODULAR RAILS M-LOK - MK16 SM RAIL 13.5" M-LOK FOR AR-15 DDC
399.9 GBP 1 £399.90 * £439.90
In stock
Color: DDC Length: 13.5 Make: AR-15 Material: Aluminum Style: M-LOK Type: Free Float Product no.: 100041113
In stock
399.9 GBP 1 £399.90 * £439.90
-10 %
The Geissele MK16 Super Modular Rail offers superior rigidity, easy installation, and maximum customization with M-LOK™ slots, ideal for demanding shooters.
AR-15 MK16 SUPER MODULAR RAILS M-LOK - MK16 SM RAIL 9.3" M-LOK FOR AR-15 DDC
384.9 GBP 7 £384.90 * £429.90
In stock
Color: DDC Length: 9.3 Make: AR-15 Material: Aluminum Style: M-LOK Type: Free Float Product no.: 100041111
In stock
384.9 GBP 7 £384.90 * £429.90
The Geissele MK16 SMR 9.3" M-LOK rail offers superior rigidity, easy installation, and maximum customization for your AR-15, crafted from durable 6061-T6 aluminum.
AR-15 MK16 SUPER MODULAR RAILS M-LOK - MK16 SM RAIL 9.3" M-LOK FOR AR-15 BLK
419.9 GBP 0 £419.90 *
Backorderable
Color: Black Length: 9.3 Make: AR-15 Material: Aluminum Style: M-LOK Type: Free Float Product no.: 100041110
Backorderable
419.9 GBP 0 £419.90 *
The Geissele MK16 Super Modular Rail offers unmatched rigidity, easy installation, and extensive customization with M-LOK slots, perfect for demanding shooters.
AR-15 MK16 SUPER MODULAR RAILS M-LOK - MK16 SM RAIL 15" M-LOK FOR AR-15 BLK
419.9 GBP 0 £419.90 *
Backorderable
Color: Black Length: 15 Make: AR-15 Material: Aluminum Style: M-LOK Type: Free Float Product no.: 100042822
Backorderable
419.9 GBP 0 £419.90 *
The Geissele MK16 SMR offers unmatched performance with easy installation, superior rigidity, M-LOK customization, and durable 6061-T6 aluminum construction.
AR-15 MK16 SUPER MODULAR RAILS M-LOK - MK16 SM RAIL 10.5" M-LOK FOR AR-15 BLK
419.9 GBP 0 £419.90 *
Backorderable
Color: Black Length: 10.5 Make: AR-15 Material: Aluminum Style: M-LOK Type: Free Float Product no.: 100042820
Backorderable
419.9 GBP 0 £419.90 *
The Geissele MK16 SMR offers unmatched performance with easy installation, superior rigidity, anti-rotation features, and extensive customization options.
AR-15 MK16 SUPER MODULAR RAILS M-LOK - MK16 SM RAIL 10.5" M-LOK FOR AR-15 DDC
439.9 GBP 0 £439.90 *
Backorderable
Color: DDC Length: 10.5 Make: AR-15 Material: Aluminum Style: M-LOK Type: Free Float Product no.: 100042821
Backorderable
439.9 GBP 0 £439.90 *
374.9 439.9 8 GBP
-10 %
MSRP £439.90
394.9 GBP £394.90

Prices inclusive of duty & VAT.

Product no.: 100042823

Mfr. No.: 05-792S

817953028339 The Super Modular Rail 13.5" (SMR) MK16 M-LOK®, NSN# 1005-01-672-4794 (13.5”), has been adopted by USASOC for the URG-I program (Upper Receiver Group Improved). The Geissele Super Modular Rail MK16 offers unmatched performance for the most demanding shooters. Mounted to your AR-15 upper using the updated version of the proven Geissele Barrel Nut design, the MK16 is not only easy to install and maintain but offers superior rigidity. Anti-rotation tabs and set-screws ensure that your rail will won’t rotate, even under the most extreme conditions of use. M1913 picatinny rail on top and M-LOK™ slots on every quadrant ensures maximum customization for all your accessories. The Geissele SMR MK16 is precision machined using 6061-T6 Aluminum due to its strong, rigid, and light properties, and is finished in durable Type-3 Hardcoat anodized. A 9.3" variant of the MK16 is also available for users requiring a shorter platform. HEIGHT: 2.39" COLOR: Black or DDC MATERIAL: 6061-T6 FINISH: Type 3 Hardcoast Anodize AVAILABLE LENGTHS: 9.3" or 13.5" INNER DIAMETER: 1.26" OUTER DIAMETER (DAQ*): 1.59" SMR MK16 9.3" WEIGHT: 10.1oz (11.74oz w/ barrel nut) SMR MK16 13.5" WEIGHT: 13.4oz (14.9oz w/ barrel nut)
In stock 6 pcs. in the USA warehouse
Be the first to rate this product
1
2
3
4
5
6
7
8
9
10+
-10 %
MSRP £439.90
£394.90

Prices inclusive of duty & VAT.

1
2
3
4
5
6
7
8
9
10+

Delivery time approx. 7-14 days.

100-Day Return Policy

Delivery time approx. 7-14 days.

100-Day Return Policy
No charges until we ship
No charge:
Your credit card will not be charged when you place your order.

No commitments:
You are under no obligation until the goods are shipped. You can cancel your order at any time before shipping - free of charge.

Not until shipping:
Your credit card will only be charged once we ship your order. Not before.
Wish List Ask question
374.9 439.9 8 GBP
Description Specification Customers reviews Accessories

GEISSELE AUTOMATICS MK16 SM RAIL 15" M-LOK FOR AR-15 DDC

-10 %
MSRP £439.90
394.9 GBP £394.90

Prices inclusive of duty & VAT.

1
2
3
4
5
6
7
8
9
10+
-10 %
MSRP £439.90
£394.90

Prices inclusive of duty & VAT.

1
2
3
4
5
6
7
8
9
10+

Delivery time approx. 7-14 days.

100-Day Return Policy

Description:

Elevate your shooting experience with the Geissele Super Modular Rail MK16.

The Super Modular Rail 13.5" (SMR) MK16 M-LOK®, NSN# 1005-01-672-4794, has been adopted by USASOC for the URG-I program (Upper Receiver Group Improved). The Geissele Super Modular Rail MK16 offers unmatched performance for the most demanding shooters.

Key Features:

  • Easy Installation: Mounted to your AR-15 upper using the updated version of the proven Geissele Barrel Nut design.
  • Superior Rigidity: Offers enhanced stability, ensuring it won’t rotate even under extreme conditions of use.
  • Customization: M1913 picatinny rail on top and M-LOK™ slots on every quadrant for maximum accessory customization.
  • Durable Construction: Precision machined using 6061-T6 Aluminum, finished in durable Type-3 Hardcoat anodized.
  • Weight Options: Available in 9.3" and 13.5" lengths; 9.3" weighs 10.1oz (11.74oz with barrel nut) and 13.5" weighs 13.4oz (14.9oz with barrel nut).

Specifications:

  • Height: 2.39"
  • Color: Black or DDC
  • Material: 6061-T6 Aluminum
  • Finish: Type 3 Hardcoat Anodize
  • Inner Diameter: 1.26"
  • Outer Diameter (DAQ*): 1.59"

For users requiring a shorter platform, a 9.3" variant of the MK16 is also available. Experience the best in performance and reliability with the Geissele SMR MK16.



Top takeaways

  1. The Geissele Super Modular Rail MK16 is designed for high performance, with easy installation, superior rigidity, and anti-rotation features.
  2. It offers extensive customization options through M1913 picatinny rail on top and M-LOK slots on all quadrants.
  3. The rail is precision machined from 6061-T6 Aluminum and comes in both black and DDC finishes, with 9.3" and 13.5" length options.

Attributes

  • Colour: 
    DDC
  • Length: 
    15
  • Material: 
    Aluminum
  • Style: 
    M-LOK
  • Type: 
    Free Float
  • Weapon type: 
    AR-15
  • Delivery weight: 0.626kg
  • Shipping height: 102mm
  • Shipping width: 102mm
  • Shipping length: 470mm
  • UPC: 817953028339

Item details

Made in USA
US export classification: 0A501.y.1

Customers reviews

Customer ratings (0)

0 / 5

Variations:

-10 %
The Geissele MK16 SMR offers superior rigidity, easy installation, and M-LOK customization for AR-15, crafted from lightweight 6061-T6 aluminum.
AR-15 MK16 SUPER MODULAR RAILS M-LOK - MK16 SM RAIL 15" M-LOK FOR AR-15 DDC
394.9 GBP 6 £394.90 * £439.90
In stock
Color: DDC Length: 15 Make: AR-15 Material: Aluminum Style: M-LOK Type: Free Float Product no.: 100042823
In stock
394.9 GBP 6 £394.90 * £439.90
-11 %
The Geissele MK16 SMR 13.5" M-LOK rail offers unmatched rigidity, easy installation, and maximum customization for your AR-15 with durable 6061-T6 Aluminum.
AR-15 MK16 SUPER MODULAR RAILS M-LOK - MK16 SM RAIL 13.5" M-LOK FOR AR-15 BLK
374.9 GBP 12 £374.90 * £419.90
In stock
Color: Black Length: 13.5 Make: AR-15 Material: Aluminum Style: M-LOK Type: Free Float Product no.: 100041112
In stock
374.9 GBP 12 £374.90 * £419.90
-9 %
The Geissele MK16 Super Modular Rail 13.5" offers unmatched performance, easy installation, superior rigidity, and maximum customization with M-LOK and Picatinny slots.
AR-15 MK16 SUPER MODULAR RAILS M-LOK - MK16 SM RAIL 13.5" M-LOK FOR AR-15 DDC
399.9 GBP 1 £399.90 * £439.90
In stock
Color: DDC Length: 13.5 Make: AR-15 Material: Aluminum Style: M-LOK Type: Free Float Product no.: 100041113
In stock
399.9 GBP 1 £399.90 * £439.90
-10 %
The Geissele MK16 Super Modular Rail offers superior rigidity, easy installation, and maximum customization with M-LOK™ slots, ideal for demanding shooters.
AR-15 MK16 SUPER MODULAR RAILS M-LOK - MK16 SM RAIL 9.3" M-LOK FOR AR-15 DDC
384.9 GBP 7 £384.90 * £429.90
In stock
Color: DDC Length: 9.3 Make: AR-15 Material: Aluminum Style: M-LOK Type: Free Float Product no.: 100041111
In stock
384.9 GBP 7 £384.90 * £429.90
The Geissele MK16 SMR 9.3" M-LOK rail offers superior rigidity, easy installation, and maximum customization for your AR-15, crafted from durable 6061-T6 aluminum.
AR-15 MK16 SUPER MODULAR RAILS M-LOK - MK16 SM RAIL 9.3" M-LOK FOR AR-15 BLK
419.9 GBP 0 £419.90 *
Backorderable
Color: Black Length: 9.3 Make: AR-15 Material: Aluminum Style: M-LOK Type: Free Float Product no.: 100041110
Backorderable
419.9 GBP 0 £419.90 *
The Geissele MK16 Super Modular Rail offers unmatched rigidity, easy installation, and extensive customization with M-LOK slots, perfect for demanding shooters.
AR-15 MK16 SUPER MODULAR RAILS M-LOK - MK16 SM RAIL 15" M-LOK FOR AR-15 BLK
419.9 GBP 0 £419.90 *
Backorderable
Color: Black Length: 15 Make: AR-15 Material: Aluminum Style: M-LOK Type: Free Float Product no.: 100042822
Backorderable
419.9 GBP 0 £419.90 *
The Geissele MK16 SMR offers unmatched performance with easy installation, superior rigidity, M-LOK customization, and durable 6061-T6 aluminum construction.
AR-15 MK16 SUPER MODULAR RAILS M-LOK - MK16 SM RAIL 10.5" M-LOK FOR AR-15 BLK
419.9 GBP 0 £419.90 *
Backorderable
Color: Black Length: 10.5 Make: AR-15 Material: Aluminum Style: M-LOK Type: Free Float Product no.: 100042820
Backorderable
419.9 GBP 0 £419.90 *
The Geissele MK16 SMR offers unmatched performance with easy installation, superior rigidity, anti-rotation features, and extensive customization options.
AR-15 MK16 SUPER MODULAR RAILS M-LOK - MK16 SM RAIL 10.5" M-LOK FOR AR-15 DDC
439.9 GBP 0 £439.90 *
Backorderable
Color: DDC Length: 10.5 Make: AR-15 Material: Aluminum Style: M-LOK Type: Free Float Product no.: 100042821
Backorderable
439.9 GBP 0 £439.90 *

Customers also bought

Oops! Something went wrong.

We encountered an error while loading this content. Please refresh the page to continue. If the issue persists, contact our customer support.

Site Navigation
Product Categories
Ordering
Customer Service

Welcome!

to Brownells UK, your destination for anything gun related. With our roots in a genuine passion for firearms, we bring you an unmatched selection of Gun Parts, Firearm Accessories, Gunsmithing Tools, Scopes & Red Dot Sights and Expert Knowledge.

Whether you're looking to maintain, repair, or upgrade, we've got what you need!

For Shooters, By Shooters
We share your enthusiasm and know exactly what you're looking for because we're part of the community.

Massive Selection
From the essentials to the unique, find everything under one roof.

Our blend of tradition and innovation
Shop with the convenience of modern technology, backed by a legacy of experience.

Browse our collection and discover why we're the trusted name in shooting sports & hunting.

Brownells Norge - Komplett utvalg av ladeutstyr, våpendeler, kuler, hylser, kikkerter, optikk og luftvåpen Brownells Österreich - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Switzerland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Deutschland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells France - Le plus grand fournisseur d'Accessoires pour le tir, Pièces détachées & Outils d'Armurier Brownells Iberica - El mayor proveedor de accesorios para el Tiro, Piezas y herramientas del armero. Brownells Sverige - Världens största leverantör av Vapendelar, Vapensmide Verktyg & Skyttetillbehör Brownells Suomi Brownells Italia - Il negozio del più grande rivenditore di componenti e accessori per armi da tiro, difesa e caccia Brownells Polska - Największy na świecie dostawca części broni, narzędzi rusznikarskich & akcesoriów strzeleckich Brownells Česko - Největší světový dodavatel součástí zbraní, střeleckého příslušenství a zbrojního nářadí
*
Prices inclusive of duty & VAT.

© 2025 Brownells UK
Part of the Brownells Europe Group

Logo Brownells
Classical viewClassical view Mobile viewMobile view
Back to top