Halcyon Custom BC – Base System (Made to Order)
In stock — ships from Irvine, CA
This item is currently on backorder. Order now to reserve yours, and we will ship it as soon as it is back in stock.
Halcyon Custom BC – Base System (Made to Order) - Eclipse Standard System (10.125.000) is backordered and will ship as soon as it is back in stock.
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Product Information
Not intended for direct purchase. Please use one of the Halcyon "Build Your Own" product pages. The Halcyon Custom BC Base System (Made to Order) is the component line item used by the DiveCatalog Halcyon "Go Custom" configurator to represent the base backplate and wing system inside a diver's custom build. It is added to the cart automatically by the configurator along with any upgrade items, and it carries the Halcyon Configuration ID, spec sheet and QR-coded PDF as line item properties.
Who it is for
This line is for divers who have already worked through a Halcyon "Build Your Own" page and chosen a single-cylinder platform (Eclipse wing) or a doubles platform (Evolve or Legend MK2 wing) in Standard, Deluxe or Pro trim. Recreational single-tank divers, technical doubles divers and anyone specifying colors, embroidery or accessory upgrades will see this base system appear automatically with their selected configuration code.
Key details
- Eclipse single-cylinder wings are offered in 20 lb, 30 lb and 40 lb lift.
- Evolve doubles wings are offered in 40 lb (18 kg) and 60 lb (27 kg) lift; Legend MK2 in 40 lb or 60 lb.
- Backplates come in Standard, Long or Small size, aluminum as standard with a stainless steel upgrade.
- The harness is infinitely adjustable, with the Cinch Quick-Adjust harness offered as an upgrade.
- The stainless steel tank adapter uses two cam straps and can be upgraded to weighted or carbon fiber.
- Legend MK2 adds four zippered Opti-Weight pockets at 1 kg (2.2 lb) each, pass-through hose openings and a low-profile inflator elbow that sits flush against the tank.
What's in the box
- Selected wing: Eclipse, Evolve or Legend MK2, depending on the configuration
- Aluminum backplate
- Secure adjustable harness with crotch strap
- Inflator with 52 cm (22 in) LP hose
- Halcyon Traverse bag
DiveCatalog.com is an authorized Halcyon dealer and a dive shop in Irvine, California since 2003. Call 888-701-4017 or start a chat if you want help choosing lift capacity, backplate size or harness style before you submit your build.
- Configurator base line Represents the base system of a Halcyon "Go Custom" build and is added to the cart automatically with any upgrade items.
- Configuration data attached Carries the Halcyon Configuration ID, spec sheet and QR-coded PDF as line item properties.
- Single-cylinder platforms Eclipse wing in 20 lb, 30 lb or 40 lb lift.
- Doubles platforms Evolve wing in 40 lb (18 kg) or 60 lb (27 kg) lift, or Legend MK2 wing in 40 lb or 60 lb lift.
- Tier structure Standard, Deluxe and Pro base systems in both Standard and Custom versions, 18 configuration codes in total.
- Backplate choice Standard, Long or Small size; aluminum as standard with a stainless steel backplate upgrade.
- Adjustable harness Infinitely adjustable secure harness with crotch strap, upgradeable to the Cinch Quick-Adjust harness.
- Stainless tank adapter Stainless steel STA with two cam straps, upgradeable to weighted or carbon fiber.
- Inflator and hose Supplied with a 52 cm (22 in) low pressure inflator hose.
- Legend MK2 refinements Precision pass-through openings for hose routing, a shell reworked for faster drainage and drying, and a low-profile inflator elbow that sits flush against the tank.
- Evolve bladder design Circular dual-bladder shape for balance and trim control.
- Accessory compatible Works with ACB10 weight pockets (4 kg / 10 lb), trim weight pockets and the MC Storage Pak.
| Brand | Halcyon |
| Product type | Custom build component, base BC system |
| Single-cylinder wing options | Eclipse 20 lb / 30 lb / 40 lb |
| Doubles wing options | Evolve 40 lb (18 kg) / 60 lb (27 kg); Legend MK2 40 lb / 60 lb |
| System tiers | Standard, Deluxe, Pro (Standard or Custom versions) |
| Backplate material | Aluminum standard, stainless steel upgrade |
| Backplate sizes | Standard, Long, Small |
| Harness | Secure infinitely adjustable harness with crotch strap; Cinch Quick-Adjust upgrade |
| Tank adapter (STA) | Stainless steel with two cam straps; weighted or carbon fiber upgrade |
| Inflator hose length | 52 cm / 22 in LP hose |
| Legend MK2 weight pockets | 4 zippered Opti-Weight pockets, 1 kg (2.2 lb) each |
| ACB10 weight pocket capacity | 4 kg / 10 lb |
| Carry bag | Halcyon Traverse bag |
| Configuration codes | 10.125.000, 10.125.007, 10.125.100, 10.125.107, 10.525.000, 10.525.007, 10.300.000, 10.300.007, 10.300.100, 10.300.107, 10.318.000, 10.318.007, 10.400.000, 10.400.007, 10.400.100, 10.400.107, 10.418.000, 10.418.007 |
| Availability | Made to order |
| Regulatory note | Proposition 65 warning (California) |
- Selected wing: Eclipse, Evolve or Legend MK2, depending on configuration
- Aluminum backplate
- Secure adjustable harness with crotch strap
- Inflator with 52 cm (22 in) LP hose
- Halcyon Traverse bag
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
Can I buy the Halcyon Custom BC Base System on its own?
No. This line is a component item used by the DiveCatalog Halcyon "Go Custom" configurator and is not intended for direct purchase. The configurator adds it to the cart automatically along with any upgrade items you select, and it carries the Halcyon Configuration ID, spec sheet and QR-coded PDF as line item properties. Start from one of the Halcyon "Build Your Own" product pages instead.
Which wing should I choose for a single tank versus doubles?
Single-cylinder systems are built around the Eclipse wing in 20 lb, 30 lb or 40 lb lift. Doubles and twin-cylinder systems use the Evolve wing in 40 lb (18 kg) or 60 lb (27 kg) lift, or the Legend MK2 wing in 40 lb or 60 lb lift. Call 888-701-4017 if you want help matching lift to your cylinders.
What comes with a standard base system?
A standard base system includes the selected wing, an aluminum backplate, a secure adjustable harness with crotch strap, an inflator with a 52 cm (22 in) low pressure hose, and a Halcyon Traverse bag. The configurator then lets you add upgrades such as a stainless steel backplate, the Cinch Quick-Adjust harness, a weighted or carbon fiber tank adapter, ACB10 weight pockets or the MC Storage Pak.
What backplate sizes are available?
Halcyon backplates are offered in Standard, Long and Small sizes, in aluminum as the standard material with a stainless steel version available as an upgrade. Backplates come in Standard, Long and Small sizes, in aluminum as standard with a stainless steel version available as an upgrade. Contact DiveCatalog at 888-701-4017 before submitting your build if you are unsure which size fits you best.












