Anyone who runs CO2 air pistols, airsoft sidearms or paintball markers knows the problem: loose 12g cartridges rattling around a range bag, rolling under the car seat, or getting mixed with empties. The 12G Co2 Capsule 21 Cartridge Storage Red from Ballistic Designs sorts that out for just £7.99.
What You Get
This is a 3D-printed storage tray that holds up to 21 standard 12-gram CO2 cartridges, each in its own snug slot. The bright red finish makes it easy to spot in a bag or on a bench, and at 157 × 68 × 18mm the tray has a genuinely compact footprint — it slips into a range bag drawer or sits on a gun-room shelf without hogging space.
Build Quality
The tray is printed in PETG HF on a Bambu Lab A1 — a material chosen for its toughness and resistance to cracking, which is exactly what you want from something that lives in a kit bag. The layer lines are clean and even, as we have come to expect from Ballistic Designs’ prints, and each slot grips the cartridge body securely enough that capsules don’t fall out when the tray is lifted or tipped, while still letting you pull one free quickly when you need it.
Everyday Use
In practice the tray works in three ways. At home it keeps a full load-out of cartridges organised on the shelf so you can see at a glance how many you have left. At the range it holds your fresh capsules in one place while empties go back in the box. And for airsoft skirmish days it makes the pre-game count simple — one glance tells you whether you have enough CO2 for the day. It suits airsoft, airgun and paintball users equally, and the compact size makes it easy to transport in a boot or bag.
Who It’s For
Airsoft players burning through capsules on skirmish days, CO2 air pistol shooters who reload their capsules in bulk, paintball users, and anyone who has ever lost a loose cartridge in the bottom of a bag. It is a storage accessory only — no CO2 cartridges are included — and as always, airgun and airsoft products in the UK are sold subject to the VCR Act 2006 and 18+ age requirements.
Verdict
At £7.99 the 12G Co2 Capsule 21 Cartridge Storage Red is a cheap, well-made fix for a nagging problem. It does one job — 21 cartridges, held securely, visible at a glance — and does it in tough PETG. Pick it up direct from Ballistic Designs on the product page, or browse the rest of the range in the Co2 Trays category.
Availability correct at time of writing. Airgun and airsoft products are sold to over-18s only in line with the VCR Act 2006.