The Mrex Mark II handguard from Kinetic Development Group is a 4.25" M-Lok rail system built for the FN SCAR platform. If you're running a SCAR and want to modernize your setup with a lightweight, accessory-rich handguard that integrates seamlessly with industry-standard M-Lok gear, this is a direct upgrade that gives you real estate for optics, lights, lasers, and grips without unnecessary bulk or weight.
Built with the same no-nonsense engineering Kinetic Development Group brings to their KDG Scar accessories line, the Mrex Mark II strips away the guesswork. The M-Lok slots let you dial in your exact configuration—whether you're setting up for long-range precision, close-quarters work, or a hybrid duty rig. The 4.25" length keeps you agile while providing ample rail real estate where you need it most, and the black finish matches standard tactical builds.
If you've been running a stock or outdated handguard on your FN SCAR, the Mrex Mark II is the kind of gear that feels like you finally unlocked the rifle's potential. It's the kind of thoughtful, no-hype upgrade that serious SCAR shooters actually want.
| Brand | Kinetic Development Group |
| Product | Mrex Mark II Handguard |
| Platform Compatibility | FN SCAR |
| Rail Length | 4.25" |
| Mounting Standard | M-Lok |
| Finish | Black |
The Mrex Mark II is designed specifically for the FN SCAR platform, and the 4.25" length is engineered to match SCAR geometry. Verify your SCAR model against the product compatibility before purchase.
Any standard M-Lok accessory—tactical lights, optic mounts, vertical grips, bipod adapters, and rail covers—will attach to the M-Lok slots on the Mrex Mark II.
The product listing specifies the handguard only. Check the Bosque Outdoors product page for details on what hardware or installation guidance is included.
Kinetic Development Group
