APTUM™ Retro-Kit Cummerbund ROC Skeletal

Modular Skeletal Cummerbund System with ROC Quick-Detach Integration

The APTUM™ Retro-Kit Cummerbund ROC Skeletal is a highly modular, low-profile cummerbund system designed to upgrade or retrofit existing plate carrier setups with modern skeletal structure and rapid-release capability. Built around a hybrid elastic and laser-cut GRID architecture, it delivers a balance of load carriage, flexibility, and streamlined performance.

Featuring integrated ROC buckle compatibility, this system enables fast donning and doffing while maintaining secure attachment under dynamic movement. The skeletal elastic construction supports pouch mounting on both sides, allowing users to configure mission-specific loadouts without sacrificing mobility or comfort.

The hook-and-loop adjustable flap combined with Tubes buckle assembly provides additional stability and adjustability, while laser-cut attachment points expand compatibility with modular pouch systems and accessories. As part of the APTUM™ ecosystem, this cummerbund is designed for adaptability across a wide range of plate carriers.

Features

• Skeletal elastic cummerbund design for lightweight load carriage
• Integrated ROC buckle system for rapid release capability
• Supports pouch attachment on both interior and exterior sides
• Hook-and-loop adjustable flap with Tubes buckle assembly
• Laser-cut GRID attachment points for modular expansion
• Designed for retrofit compatibility with existing plate carriers
• Sold as a pair
• Optimized for scalability and mission-specific configurations

Sizing

• Small: 17" total length per side (6 columns)
• Medium: 21" total length per side (8 columns)

Sizing Guidance:
Measure from the bottom of your front plate to the center back of your carrier. Subtract 2" for buckle allowance.

⚠️ Measure carefully—twice or even three times. Cut once.
If unsure about sizing, contact us before purchasing. Improper size selection cannot be exchanged or corrected.

Materials & Construction

• Durable laser-cut GRID laminate construction
• MIL-SPEC elastic, thread, and hook-and-loop materials
• Integrated ROC buckle hardware
• Berry Compliant
• Made in the USA

Ideal For

• Plate carrier retrofitting and upgrades
• Military and law enforcement operations
• Rapid-response tactical loadouts
• Modular armor systems
• Lightweight, high-mobility configurations
• Training and operational environments