...
CLEARANCE HK Army 20oz Aluminum CO2 Paintball Tank - Blue | 2025 Hydro

HK Army

CLEARANCE HK Army 20oz Aluminum CO2 Paintball Tank - Blue | 2025 Hydro

Sale price$25.00 Regular price$27.95
SKU: HK-2050-52000440-2025-OPN-1
AUTHORIZED DEALER
CONDITION: OPEN BOX – Inspected & Tested

This CLEARANCE HK Army 20oz Aluminum CO2 Paintball Tank was sold brand new and returned within 30 days. Inspected, tested, and verified fully functional, but may show minor signs of handling or limited use. Cosmetic condition does not affect performance or safety. Stock photos shown. Request actual item photos if you'd like to see it before it ships. All CLEARANCE sales are final. GAME ON!

HYDRO DATE (The date the tank was made, NOT an expiration date)

Selected hydro year: 2025.Hydro date varies by selection. Tanks are good for 5 years from the selected date until they will need to be re-hydrotested. If you need the exact stamp or photos of the actual tank you will receive, request photos before purchase. All CLEARANCE sales are final.

Condition:OPEN BOX - Inspected & Tested
Hydro Date:2025
Quantity:
Pickup available at 2970 Seaborg Ave Usually ready in 2 hours

CLEARANCE HK Army 20oz Aluminum CO2 Paintball Tank - Blue | 2025 Hydro

OPEN BOX - Inspected & Tested / 2025

2970 Seaborg Ave

Pickup available, usually ready in 2 hours

2970 Seaborg Ave
Ventura CA 93003
United States

8052752040

Clearance HK Army 20oz Aluminum CO₂ Paintball Tank – Blue

Reliable air. Premium HK Army style. Clearance pricing.

The Clearance HK Army 20oz Aluminum CO₂ Paintball Tank delivers the dependable performance players expect from a traditional CO₂ air system while adding HK Army's distinctive Blue finish. Built from lightweight aluminum and equipped with an industry-standard pin valve and safety burst disc, this refillable tank is an excellent choice for CO₂-compatible paintball markers. 

Every clearance tank is inspected before shipment and verified fully functional. Cosmetic condition may vary, but each tank remains safe, reliable, and field-ready at a discounted clearance price.

Lightweight Aluminum • 20oz Capacity • Clearance Savings


Who This Tank Is For

  • Players using CO₂-compatible paintball markers
  • Tippmann, Spyder, JT, Azodin and similar mechanical markers
  • Rental fleets and group outings
  • Weekend recreational players
  • Anyone looking for an affordable backup tank

Reliable CO₂ Performance

The HK Army 20oz CO₂ Tank provides dependable gas delivery and enough capacity for approximately 800–1,000 shots per fill, depending on your marker, weather conditions, and firing rate. It's one of the most popular air systems for recreational paintball because CO₂ remains inexpensive and widely available. :contentReference[oaicite:1]{index=1}

  • Approximately 800–1,000 shots per fill
  • Industry-standard CO₂ pin valve
  • Consistent performance for mechanical markers
  • Easy to refill at many paintball fields

Important Tank Shipping Notice

ALL paintball CO₂ tanks ship EMPTY to comply with Department of Transportation safety regulations and must be filled prior to use. 

CO₂ tanks require liquid carbon dioxide filling equipment and cannot be filled using compressed air or standard shop compressors.


Find Local CO₂ Tank Filling Services 🗺️

Most players refill CO₂ tanks at:

  • Paintball fields
  • Local paintball stores
  • Sporting goods stores
  • Welding gas suppliers
  • Beverage gas suppliers

Need help finding a fill station?

Use our CO₂ Fill Finder before game day.

Find Local CO₂ Fills →

Always call ahead to confirm CO₂ filling services are available.


How to Read Your Hydro Date

Every HK Army CO₂ tank includes a stamped manufacture (hydro) date on the bottle.

Example: 01 ◇ 25 = Manufactured in January 2025

  • Aluminum CO₂ tanks require hydrostatic testing every 5 years.
  • The stamped date is the manufacture date—not the expiration date.
  • Most fill stations will require tanks to be within their hydro test period before filling.

This listing includes a 2025 hydro date.


Lightweight Aluminum Construction

The durable aluminum bottle keeps weight low while standing up to years of recreational paintball use. The pin valve design is compatible with virtually every CO₂-ready paintball marker.

  • Lightweight aluminum bottle
  • Industry-standard CO₂ pin valve
  • High-pressure safety burst disc
  • Durable HK Army finish

Clearance Condition Notes

Clearance items are inspected and sold at a discounted price due to condition. Stock photos shown. Request actual item photos if you'd like to see the exact tank before it ships. All CLEARANCE sales are final. GAME ON!

CONDITION: OPEN BOX - Inspected & Tested

OPEN BOX - Inspected & Tested – Sold new and returned within 30 days. Fully inspected and verified functional. May show minor handling marks, damaged packaging, or cosmetic blemishes. Cosmetic condition does not affect safety or performance.

CONDITION: USED - Fully Functional

USED - Fully Functional – Sold new and returned within 30 days. Fully inspected and verified functional. May show scratches, scuffs, paint marks, packaging damage, or signs of previous use. Cosmetic condition does not affect functionality or safety.


Features

  • 20oz refillable CO₂ capacity
  • Lightweight aluminum bottle
  • Industry-standard pin valve
  • High-pressure burst disc
  • HK Army Blue finish
  • Approximately 800–1,000 shots per fill
  • DOT & TC approved cylinder
  • 2025 Hydro Date
  • Inspected and verified fully functional

What's Included

  • 1 HK Army 20oz Aluminum CO₂ Tank – Blue

Ships EMPTY. CO₂ fill required before use.


Complete Your Paintball Air Setup


Maddog Pro Tip

Pair your CO₂ tank with a remote coil and a 2+1, 4+1, or 6+1 harness to move the tank off your marker. This improves balance, reduces fatigue, and creates a lighter, more comfortable setup during long days on the field.

Reliable Air. Premium HK Army Style. GAME ON!


Keywords: clearance HK Army CO2 tank, 20oz CO2 tank, blue CO2 paintball tank, HK Army aluminum tank, refillable CO2 bottle, 2025 hydro tank, used paintball tank, open box CO2 tank

FAQ

No. All CO₂ tanks ship empty to comply with U.S. Department of Transportation regulations and must be filled before use.

The stamped 2025 date is the manufacture (hydro) date—not an expiration date. Aluminum CO₂ tanks require hydrostatic testing every five years before they can continue to be filled.

Most players can expect approximately 800–1,000 shots per fill, depending on marker efficiency and playing conditions.