Onyx M-16 Inflatable Belt Pack Life Jacket — Compact PFD for Paddle Sports and Boating

Onyx has introduced the M-16, a slim inflatable belt pack life jacket designed for people who want a low-profile personal flotation device that stays out of the way during active pursuits. According to the manufacturer, the M-16 is ideal for stand-up paddleboarding (SUP), kayaking, fishing, sailing, hunting and general recreational boating, offering a balance between mobility and flotation when needed.

Design and Intended Use

The Onyx M-16 is presented as an ultra-sleek inflatable PFD that fits around the waist like a belt pack. When worn normally, it maintains a low profile so it does not interfere with paddling strokes or casting motions. This makes it particularly appealing for active water users who prioritize freedom of movement but still want the security of an approved flotation device on hand.

Onyx emphasizes the M-16’s suitability across a range of activities: from SUP and solo kayak trips to fishing excursions and daysailing where a minimal, compact PFD is preferred. The manufacturer states that the unit stows compactly when not in use, folding down to a small package that is easy to carry or store aboard a boat or in a dry bag.

Inflation and Rearming

Inflation is achieved by pulling an inflation activation cord, which triggers the device to inflate quickly when needed. After the PFD has been deployed, it must be rearmed before it can be used again. Onyx supplies a dedicated M-16 rearming kit for that purpose; the kit is sold separately and is required to return the belt pack to service after inflation.

This sequence — wear, activate by pull, and rearm with a kit after use — is typical of inflatable belt pack personal flotation devices. Users should plan ahead to have the rearming kit available if they expect any situation where inflation may be required.

Practical Considerations and Care

While the M-16 is marketed for its slim fit and convenience, owners should observe routine care and inspection practices common to inflatable PFDs. After any exposure to salt water, chlorine, or heavy soiling, rinse the unit with fresh water and allow it to dry completely before storage. Inspect the housing, seams and activation components regularly for wear or damage, and follow the manufacturer’s instructions for rearming and servicing. If the device is used or inflated, replace the spent components with the proper rearming kit as indicated by Onyx.

Because inflatable belt pack PFDs rely on mechanical or CO2 inflation systems, users should also check that the inflation cartridge (if installed) and the activation mechanism are within recommended service intervals and show no signs of corrosion or tampering. Proper storage in a cool, dry place away from direct sunlight will help prolong the life of the unit.

Availability and Pricing

The Onyx M-16 belt pack life jacket is available for purchase with a suggested price of $89.99. At the time of publication, the product was listed through Absolute Outdoor in Sauk Rapids, Minnesota, with contact (320) 252-2056, and is offered by Onyx via their distribution channels. The M-16 rearming kit is sold separately and must be purchased to restore the PFD to service after inflation.

Summary

The Onyx M-16 is aimed at water users who want a compact, unobtrusive PFD that can be stowed easily and worn without restricting motion. It uses a pull-to-inflate activation method and requires a separately sold rearming kit after deployment. As with all inflatable life jackets, proper inspection, cleaning, and rearming are essential to ensure the device performs reliably when needed.

This article originally appeared in the October 2015 issue.