Crye Precision R-Series™ M4 Jump Flap | Streamlined Modular Chest Rig Flap

The Crye Precision R-Series™ M4 Jump Flap delivers streamlined performance with mission-adaptable flexibility. In its base form, it secures three 30-round M4 magazines in a low-profile flap, complete with 1" side loops for retention during dynamic or airborne operations. A hidden bottom slip pocket adds utility, offering storage for sensitive items or integration with Velcro® side pouches compatible with the JPC R-Series™.

But it doesn’t stop there. Add the R-Series™ Assault Harness and Harness Adapter to convert it into a lightweight JUMP chest rig. Pair with the R-Series™ Plate Cover and Zip-On Pack Adapter for a complete RECCE-style loadout. From slick to full kit, this flap adapts to your environment and mission profile.

Why We Love It

This isn’t just a mag flap, it’s a foundation for a modular loadout system. Whether you’re going low-profile or scaling up to a recon-ready plate carrier, the Jump Flap is the starting point for total kit flexibility.

Features

• Carries three 30-round M4 magazines

• Side loops for secure retention during movement or airborne ops

• Internal bottom slip pocket stores sensitive items or attaches Velcro®-backed pouches

• Converts into a chest rig with R-Series™ Assault Harness & Adapter

• Integrates into RECCE plate carrier loadouts with compatible Zip-On Pack and Plate Cover

• Made in the USA from US materials

R-SERIES OPERATOR'S MANUAL