10 lbs (4.5 kg) Active Control Ballast System, 5 lbs (2.25 kg) per side. Side release buckle prevents accidental weight loss and allows the diver or dive buddy to quickly release and/or replace part or all of their ballast as the need requires. Ideal for travelling diver.
Halcyon ACB (Active Control Ballast) integrated weight pockets are an ideal solution for divers seeking releasable weight for their Halcyon BC system.

This patented Halcyon design is simple and effective; when complemented by our fixed and removable ballast options, these pockets fine tune system weighting while supporting stability and diving comfort.

Key Features of ACB Weighting System:
- 10-lb. ACB System (5 lbs/2.3 kg per side)
- New vertical orientation consumes less space
- Simple tri-glide connection secures the ACB on the Harness waist band
- Allows mounting of an Explorer Primary light behind the ACB pocket
- Side release buckle prevents accidental weight loss but can be quickly released
- Can be used with most soft or hard dive weights
- Removable weight pouch features an easy-carry handle
- Halcyon’s ACB Integrated Weight Pockets are protected by US Patent 6527480