HK Army Alpha Air Tank 77ci / 1.26L — Carbon Fibre HPA Tank (4500psi)
HK Army Alpha Air Tank 77ci / 1.26L — Carbon Fibre HPA Tank (4500psi)
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£204.95
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DETAILS
DETAILS
SKU:
44926175
- description
⚠ Regulator not included. Compatible with all standard 5/8-18 UNF HPA regulators — see our HPA Regulators collection. The HK Army HP8 works great with this tank. Tanks are supplied empty.
One step up from the 68ci, the 77ci Alpha sits between the popular 68ci and the full-size 88ci — more air capacity for players who find themselves running low during long field days, without the extra length and weight of the 88ci. At 228mm bottle length (just 20mm longer than the 68ci) the trade-off in size is minimal for the gain in capacity.
Same ultra-light carbon fibre wrapped construction as the rest of the Alpha range, the same DOT/TC-UN certification, and the same 5-year hydro test schedule. Available in multiple HK Army colourways. Regulator sold separately.
HK Army Alpha range — choosing the right size
| Tank | Capacity | Length | Best for |
|---|---|---|---|
| Alpha 48ci | 0.8L | ~180–200mm | CQB, speedsoft, compact builds |
| Alpha 68ci | 1.1L | 208mm | Most field players — best all-round |
| Alpha 77ci (this) | 1.26L | 228mm | Extended sessions, full-day play |
| Alpha 88ci | 1.5L | 243mm | High-demand builds, milsim |
| Alpha 98ci | 1.6L | ~255mm | Maximum runtime, all-day milsim |
Specifications
| Specification | Detail |
|---|---|
| Capacity | 77ci / 1.26L |
| Fill pressure | 4500psi (maximum) |
| Construction | Carbon fibre wrapped aluminium core |
| Thread | 5/8-18 UNF (standard HPA) |
| Diameter | 112mm / 4.4" |
| Length (bottle only) | 228mm / 9" |
| Weight | ~0.8kg / 1lb 12oz |
| Regulator | Not included |
| Certification | DOT/TC-UN (ISO11119-2) |
| Hydro test interval | 5 years (check stamp on arrival) |
| Supplied | Empty (safety regulations prevent pressurised shipping) |
🔧 Titan Forge Airsoft tip: The 77ci is worth considering if you’re playing full-day events or running a higher air consumption engine like a STORM or recoil system. The extra 20mm over the 68ci is barely noticeable on the shoulder, but the additional air capacity makes a real difference over a long day.