12g co2 cartridge
Skip itA concentrated shelf (top 5 take 93% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.2%return rate — above 5% kills the launch gate
Conversion
Great9.3%search→purchase rate — share of searches ending in a sale
Review moat
Good798.71avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Avg price
Good£12.80avg listing price — sweet spot $15–$100
Growth
Okay+8.7%90-day search growth — must beat 0% to launch
Price range
Okay£4.43–£20.51cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay85%top-5 brand share — brands hold most of the demand
Market size
Bad£47K£47K/yr · 39K searches
Competition
Bad93%top-5 click share — a locked-up shelf
According to Flapen's Amazon United Kingdom niche tracking, 12g co2 cartridge is a £47K/yr Amazon United Kingdom market (39K searches/yr). The top 5 brands hold 85% of demand. Verdict: Skip it — 44/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
12g co2 cartridge market data
- Units sold / yr
- 3K–4K
- avg 250–500/product
- Revenue / yr
- £38K–£51K
- units × avg price
- Conversion rate
- 9.3%
- Avg BSR
- #5
- Page quality
- 0%
- Prime
- 86%
- Sponsored
- 29%
- Out of stock
- 14.6%
- Avg brand age
- 73 months
- Avg seller age
- 202 days
Competition & brand share
The top 5 products capture 93% of clicks — a locked-up shelf that new listings rarely crack.Brands
5 flat
Sellers
15
Top-5 brand share
85%
Top 20: 85%
Top-5 click share
93%
Top 20: 100%
Open market
0%
- Umarex60%
- --15%
- ICO10%
- ARSUK8%
- Lotsdonxia4%
- AOLS3%
- Open — no brand owns it (0%)
Demand
Weekly Amazon search volume, last 8 weeks — +8.7% search growth over the last 90 days.Top 12g co2 cartridge search terms
- 12g co2 cartridge26K/yr
- 12g co2 cartridge air pistol4K/yr
- co2 cartridge 12g4K/yr
- umarex co2 cartridge 12g4K/yr
Top 12g co2 cartridge products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 7 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Umarex 20 x 12g Co2 Gas Capsules Cartridge Air Rifle Pistol Gun Airgun 12 Gram CO2
Umarex£11.464.7★1,207 rev
BISLEY 12g CO2 Cartridges for Airsoft Guns Pack of 50 Non-Threaded Gas Canisters Steel CO2 Capsules for Airsoft BB Gun CO2-Powered Devices & Gear
--£17.724.2★18 rev
Umarex 12gram Airgun Co2 Cartridge 50 Pack - 12 gram Powerlets Bulbs Suits All Popular Co2 Pellet and BB Guns Inc. Crosman Gamo and Swith Wesson etc.
Umarex£20.514.8★765 rev
12 Gram CO2 Cartridge Non-Threaded (10pk) Airsoft Gas for CO2 Devices
ICO£8.404.4★2,694 rev
ARSUK 12g CO2 Cartridges Pack of 10 Non-Threaded Gas Canisters Stainless Steel CO2 Capsules for Sporting Goods CO2-Powered Outdoor Devices & Gear
ARSUK£9.904.6★878 rev
Newest
by launch dateBISLEY 12g CO2 Cartridges for Airsoft Guns Pack of 50 Non-Threaded Gas Canisters Steel CO2 Capsules for Airsoft BB Gun CO2-Powered Devices & Gear
--£17.7218 rev
Lotsdonxia Tactical Pistol Holster Right & Left Hand Draw IWB/OWB Gun Holster for Concealed Carry Adjustable Waistband Holster for Full-Size Pistols (Black)
Lotsdonxia£4.436 rev
AOLS Refillable Cartridge 12 gram capacity for Airsoft
AOLS£17.1623 rev
Umarex 20 x 12g Co2 Gas Capsules Cartridge Air Rifle Pistol Gun Airgun 12 Gram CO2
Umarex£11.461,207 rev
Umarex 12gram Airgun Co2 Cartridge 50 Pack - 12 gram Powerlets Bulbs Suits All Popular Co2 Pellet and BB Guns Inc. Crosman Gamo and Swith Wesson etc.
Umarex£20.51765 rev
Trending
90-day click momentumLotsdonxia Tactical Pistol Holster Right & Left Hand Draw IWB/OWB Gun Holster for Concealed Carry Adjustable Waistband Holster for Full-Size Pistols (Black)
Lotsdonxia£4.434.2★
AOLS Refillable Cartridge 12 gram capacity for Airsoft
AOLS£17.163.7★
BISLEY 12g CO2 Cartridges for Airsoft Guns Pack of 50 Non-Threaded Gas Canisters Steel CO2 Capsules for Airsoft BB Gun CO2-Powered Devices & Gear
--£17.724.2★
12 Gram CO2 Cartridge Non-Threaded (10pk) Airsoft Gas for CO2 Devices
ICO£8.404.4★
Umarex 20 x 12g Co2 Gas Capsules Cartridge Air Rifle Pistol Gun Airgun 12 Gram CO2
Umarex£11.464.7★
What buyers say about 12g co2 cartridge
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality”
“Great bundle, affordable price”
“As per listing”
“Lightweight and smooth appearance”
“good fit”
“EASY TO USE”
What buyers complain about
“Leaks”
“The cap is not perfectly flat it has a slight indentation causing the pin to fail to puncture correctly causing ice up”
“Poor quality”
“not boxed as in the illustration”
“Just a weak, cheap, paper bag so happy that no cartridges were listed in transit thus time”
Top return reasons
Common questions
- Is 12g co2 cartridge profitable to sell on Amazon United Kingdom?
- The niche generates £47K/yr across 7 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +8.7%. Flapen's verdict: Skip it (44/100).
- How competitive is the 12g co2 cartridge niche?
- 5 brands and 15 sellers compete. The top 5 products take 93% of clicks and top 5 brands hold 85% of demand.
- What do buyers complain about in 12g co2 cartridge?
- Top complaints mined from reviews: Leak-Proof, Flatness, Quality-Overall. The return rate is 0.2%.
- What does it cost to enter the 12g co2 cartridge niche?
- Listings span £4.43–£20.51; the average listing price is £12.80 (sweet spot $15–$100). The average incumbent carries 799 reviews — the moat a new listing must climb.