Halcyon is pleased to introduce a smaller version of our high quality Stainless Stee
l and Aluminum backplates.
The new Small backplates are 14” tall and 9.25” wide, in comparison to our standard backplate
at 15.5” tall and 10.25” wide. This small plate is designed for the smaller stature diver seeking a more
comfortable fit.
Constructed with the same ergonomic design and high quality materials as our standard size plates. The
Small SS plate features 3/8” stainless steel with the same high quality finishing and weighs 5.32 lbs with a
Secure Harness.
The small Aluminum plate features the extremely rugged Hardcoat finish and weighs approximately 2
pounds with a Secure Harness.
Featuring standard 11” bolt holes & utility mounts the Halcyon Small SS Backplate will fit with existing
Halcyon wings, accessories, and tank adapters.
•Small Backplate w/ Secure Harness P/N: 10.010.102 Stainless Steel / P/N: 10.020.102 Aluminum
The Halcyon Secure Harness® allows for infinite adjustability, providing a perfect fit for all divers and diving systems. Men or women diving wet or dry will find the Secure Harness is without question the most stable and well-fitted design in the industry.
- Five point system insures snug fit and eliminates tank roll and drift
- MC Storage Pak® provides "transparent" storage for alternate lift and signaling devices
- Bent D-rings facilitate one-handed storage of accessories like Scout lights or stage bottles
- Complete adjustability of D-rings eliminates inappropriate attachment points
Convertible Weighted Single Tank Adapter
Halcyon's Convertible Weighted Single Tank Adapter is an
evolutionary step forward within the MC System. The weight is
now sealed in vinyl and is removable from the tank adapter. The
Weighted STA provides six pounds of unreleasable ballast to an
Eclipse or Pioneer MC System. 
The five pound weighted center
section can also be removed from the STA, and then the STA can
be used as a standard adapter for your Halcyon wing. Without
the sealed weight, the stainless steel adapter and straps provide
one pound of fixed ballast.
Ditch that cumbersome weight belt and discover the benefits of the Halcyon MC's Active Control Ballast (patent pending).
Available in two configurations-- ACB 20 (10 lbs./side) and ACB 12 (6 lbs./side).
- Side release buckle prevents accidental weight loss and allows thediver or dive buddy to quicklyrelease and/or replace part or all of their ballast as the need requires
- Popular with instructors who are sensitive to the complete loss of a diver's weight and who resist integrated weights that prevent practicing emergency weight removal
- Divers experiencing buoyancy problems can release part of their weight, eliminating a rapid ascent from the loss of an entire weight belt
- The streamlined ACB 20 and ACB 12 utilize a side release buckle acting as both the release mechanism and weight handle.
- Attaches to the harness with an integrated tri-glide; a canister light can be attached by sliding onto the harness before attaching pocket.
More than half of all diving fatalities occur at the surface. 
Sadly, most divers believe that jacket-style BCs provide proper surface floatation when, in fact, a divers surface position principally relates to their weight distribution.A nearly empty aluminum cylinder will usually float an unconscious diver face-downregardlessof the BC worn. However, the Halcyon Trim Weighting Kit promotes heads-up surface airway protection by counteracting the positive tendency of buoyant cylinders.
- Shiftingweight from a diver's waist toward their center, such as with a stainless Halcyon Backplate or trim weight system, facilitates horizontal diver trim and reduces drag
- Up to five pounds of weight can be attached to your tank with each streamlined trim weight pocket
