Crye Precision R-Series™ Zip-On Pack | Versatile Modular Assault Pack The Crye Precision R-Series™ Zip-On Pack is the pinnacle of modular load carriage systems. Designed to support dynamic missions across multiple configurations—JUMP, RECCE, or standalone—this pack adapts to your needs in real-time. Whether you're mounting it to the JPC R-Series™, running it off the R-Series™ Assault Harness, or rocking it as a day pack, this setup ensures you're mission-ready from loadout to exfil. Built from rugged 500D outer fabric with internal plate retention straps, hydration compatibility, and interior comm routing ports, this pack isn’t just tactical—it’s tactical intelligence made tangible. Why We Love It Crye built this thing for adaptability. It’s not just a pack—it’s a platform. Whether you’re carrying comms, hydration, or slapping a plate in for RECCE work, the Zip-On Pack stays low-profile and mission-configurable without slowing you down. This is modularity at its finest. Features: 500D outer fabric, 250D Poly mesh inside pockets Multiple inside ports for comm cable routing Interior pocket with plate strap holds ballistic plate and or various radios Side zippers allow for connection to back of JPC R-SERIES™ Top connection points connect to R-SERIES™ ASSAULT HARNESS for multiple carrier options Bottom side connection points allow for converting into day pack. Sizing Info: Small/Medium: 11.75” x 8.75” to 12.5” x 9.5” Large/Xlarge: 13.25” x 10.5” to 14” x 11.25” R-SERIES OPERATOR'S MANUAL