Kinetic Development Group FN Scar Rail – MREX MKII

Upgrade your FN SCAR rifle with the Kinetic Development Group FN Scar Rail – MREX MKII, the ultimate modular rail extension designed for tactical precision and versatility. Engineered to seamlessly extend your SCAR 16S or 17S platform, this lightweight M-LOK handguard delivers expanded mounting options for optics, lights, grips, and more—without compromising the rifle’s renowned balance or maneuverability. Perfect for shooters seeking to customize their setup for competition, hunting, or duty use, the MREX MKII transforms limited rail space into a fully adaptable system.

Key Features

• M-LOK Compatibility: Multiple slots at strategic positions, including 2/10 o’clock for enhanced accessory placement and ergonomics.
• Free-Floating Design: Ensures optimal accuracy by isolating the barrel from added components, reducing vibration and heat transfer.
• Streamlined Profile: Low-profile extension that maintains the SCAR’s compact feel, ideal for close-quarters handling.
• Durable Construction: Machined from 6061-T6 aircraft-grade aluminum with a rugged Type III hardcoat anodized finish in black or FDE Cerakote for superior corrosion resistance.
• Easy Installation: Simplified hardware setup compared to previous generations, allowing quick swaps without specialized tools.

Specifications

• Material: 6061-T6 Aluminum
• Finish Options: Black Anodized or FDE Cerakote
• Extension Lengths: 4.25 inches or 6.5 inches beyond the upper receiver
• Weight: Approximately 7 ounces (plus minimal mounting hardware)
• Compatibility: FN SCAR 16S and 17S models
• Made in USA: 100% American craftsmanship for reliability you can trust

Why Choose the MREX MKII?

Many SCAR owners face the challenge of insufficient rail space on the stock handguard, limiting accessory integration and forcing awkward mounting solutions. The MREX MKII solves this by providing a seamless extension that adds real estate where you need it most—forward of the receiver—while keeping weight addition negligible. This means better weight distribution for improved handling during extended sessions, whether you’re on the range or in dynamic environments. Unlike bulkier alternatives, its minimalist design enhances grip comfort and reduces front-end heaviness, addressing common complaints about balance in customized rifles. With improved ergonomics from user feedback, it’s not just an upgrade; it’s a performance enhancer that keeps your SCAR lightweight and agile.

Ready to elevate your FN SCAR’s capabilities? The Kinetic Development Group MREX MKII is your go-to solution for modular excellence—customize confidently and shoot with precision.

Frequently Asked Questions

What models of FN SCAR is the MREX MKII compatible with?

The MREX MKII is designed for FN SCAR 16S and 17S rifles, fitting standard configurations without modifications.

How difficult is the installation process?

Installation is straightforward with included hardware, though initial handguard removal may require careful heating to loosen the factory fit. Follow KDG’s guidelines for a secure, tool-minimal setup.

Does this rail add significant weight to my rifle?

No, the MREX MKII adds only about 7 ounces, preserving the SCAR’s lightweight profile and ensuring it remains balanced for all-day carry.