FN SCAR Accessories

Upgrade Your FN SCAR Accessories with KDG Today: As a leading manufacturer of aftermarket FN SCAR parts, KDG offers a comprehensive selection of high-quality accessories, including rails, charging handles, safety selectors, and more. Find everything you need to customize your FN SCAR and optimize your shooting experience.

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Factory Second – KDG FN SCAR 15P Rail – MREX15

Enhance Your FN SCAR 15P with the Legendary MREX15

$139.99

KDG FN SCAR 15P Rail – MREX15

Enhance Your FN SCAR 15P with the Legendary MREX15

$249.99

KDG FN SCAR 20S Rail - AXL

KDG FN SCAR 20S Rail – MREX20 AXL

Unleash the Full Potential of Your FN SCAR 20S with the MREX20 AXL

$379.98

KDG FN SCAR 20S Rail

KDG FN SCAR 20S Rail – MREX20 A

Unleash the Full Potential of Your FN SCAR 20S with the MREX20 A

$379.98

KDG FN SCAR 20S Rail - MREX20 XL

KDG FN SCAR 20S Rail – MREX20 XL

Unleash the Full Potential of Your FN SCAR 20S with the MREX20 XL

$199.99

FN SCAR 20S Rail

KDG FN SCAR 20S Rail – MREX20

Unleash the Full Potential of Your FN SCAR 20S with the MREX20

$199.99

MREX MkII Replacement Bridge

MREX MkII Replacement Bridge

This is a REPLACEMENT Bridge insert for all MREX MkII rails. A new MREX MkII will have a Bridge already pre-installed from the factory. This kit is not required when purchasing an MREX MkII. If a replacement Bridge is needed we recommend replacing the MREX MkII installation hardware as…

$29.99

MREX MkII Hardware Kit

This is a REPLACEMENT or ADDITIONAL hardware kit for MkII MREX Rails. This kit is not required when purchasing an MREX MkII. Thread adhesive may or may not be included in this kit. If not, this is because the fasteners come pre-applied with a VC3 thread locker.

Included:

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$5.99

KDG FN SCAR Rail – MREX MkII 4.25

KDG FN SCAR Rail – MREX MkII 4.25

Enhance Your FN SCAR with the Legendary MREX MKII 4.25

$359.98

KDG FN SCAR Rail – MREX MkII 2.2

KDG FN SCAR Rail – MREX MkII 2.2

Enhance Your FN SCAR with the Legendary MREX MKII 2.2

$299.98

KDG FN SCAR Rail - MREX MkII 6.5

KDG FN SCAR Rail – MREX MkII 6.5

Unleash Your Rifle’s True Potential with the Ultimate FN SCAR Rail Upgrade

$359.98

MREX Replacement Bridge – 1st Gen ONLY

MREX Replacement Bridge – 1st Gen ONLY

This is a REPLACEMENT Bridge insert for all Gen1 MREX rails. If a replacement Bridge is needed we recommend replacing the MREX Gen1 Hardware as well. This Bridge will not work in an MREX MkII.

Included: 

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$24.99

Manuals & Guides

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Frequently asked questions

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Read more about FN SCAR Accessories

FN SCAR accessories FAQs

ALL Kinetic Development Group manufactured FN SCAR accessories are made in the USA.

Yes, we offer a lifetime warranty on all Kinetic Development Group manufactured FN SCAR accessories. Click Here
MREX MKII Rails are designed to fit all 16/17 FN SCAR models, well the MREX20 Rails are 
designed to fit all FN SCAR 20 models. Maybe we are also working on a MREX15 Rail for the 
FN SCAR 15P. 

Maybe we will, maybe we won’t. Stop asking!  

Simply pick the color selector and then order one to install on your FN SCAR. 

Non-Reciprocating FN SCARs use the NRCH Scarging handle and Reciprocating FN SCARs 
use the RCH Scarging handle.
No, you will make us very sad, and you will most likely need to purchase a replacement bridge 
and hardware kit. 

A conversion kit is required to make you RCH FN SCAR into an NRCH FN SCAR 

The Gen 1 MREX rails are discontinued. 

The KA2-20 aftermarket FN SCAR Magazine is designed to fit 7.62 x 51 and 6.5 Creedmoor. They will only work with OEM FN SCAR lower receivers. 

Welcome Kinetic Development Group. Our site is intended for individuals of at least 18 years of age.

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