8 gram co2 cartridges
Skip itA small market ($53K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Great$18.52avg listing price — sweet spot $15–$100
Conversion
Great7.9%search→purchase rate — share of searches ending in a sale
Price range
Great$8.39–$40.11cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good1,419.35avg incumbent reviews — the moat a new listing must climb
Brand share
Okay78%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay60%top-5 click share — leaders hold, buyers still browse
Growth
Bad-13.2%90-day search growth — must beat 0% to launch
Market size
Bad$53K$53K/yr · 36K searches
According to Flapen's Amazon United States niche tracking, 8 gram co2 cartridges is a $53K/yr Amazon United States market (36K searches/yr). The top 5 brands hold 78% of demand. Verdict: Skip it — 48/100.
Data updated Jul 24, 2026 · scored weekly · How we score niches
8 gram co2 cartridges market data
- Units sold / yr
- 3K–4K
- avg 100–250/product
- Revenue / yr
- $56K–$74K
- units × avg price
- Conversion rate
- 7.9%
- Avg BSR
- #18
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 76%
- Out of stock
- 5.9%
- Avg brand age
- 82 months
- Avg seller age
- 177 days
Competition & brand share
The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.Brands
12 falling
Sellers
31
Top-5 brand share
78%
Top 20: 100%
Top-5 click share
60%
Top 20: 100%
Open market
16%
- KONG MING CAR22%
- CXWXC20%
- Byrna15%
- Guard Dog Security13%
- Lancer Tactical9%
- QSBENI5%
- Open — no brand owns it (6 brands, 16%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -13.2% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top 8 gram co2 cartridges search terms
- 8 gram co2 cartridges16K/yr
- 8g co2 cartridges10K/yr
- co2 cartridges 8 gram3K/yr
- 8 gram co24K/yr
- 8gram co2 cartridge3K/yr
Top 8 gram co2 cartridges 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 17 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
KONG MING CAR 8 Gram / 12 Gram CO2 Cartridges Non-Threaded High-Grade CO2 Cylinder CO2 Cartridges for Paintball Guns Pellet Guns BB Guns and Airsoft Guns (8G-10PCS)
KONG MING CAR$9.464.4★280 rev
Byrna 8 Gram CO2 + Oiler Cartridges | 10 Count Pack | for Byrna SD/CL/HD/EP - (9 CO2 + 1 Oiler Cylinders)
Byrna$19.374.8★1,630 rev
8 Gram/ 12 Gram CO2 Cartridges for Paintball - CO2 Cylinder CO2 Powerlet Cartridges for Airsoft Air Gun Pepper Gun P2P HDP 50 Compact(8G-12PC)
CXWXC$15.074.6★512 rev
Guard Dog Security 12 Gram Co2 Cartridges Non-Threaded CO2 cartridges BB Gun CO2 BB Pistol CO2 Airsoft Pistol and CO2 Paintball Markers Snug fit Solid Seal (Pack of 25)
Guard Dog Security$30.114.6★773 rev
Lancer Tactical 8g CO2 Cylinder CO2 Cartridge CO2 Charger for Kitchen Use Airsoft Air Gun Seltzer Water Chargers Seltzer Soda Chargers Pepper Gun (Count 50)
Lancer Tactical$40.114.9★18 rev
Newest
by launch date
Mosa Seltzer Parts 10 pcs for Making Sparkling Water
Mosa$14.8433 rev
Guard Dog Security 8 Gram / 12 Gram Co2 Cartridges Non-Threaded CO2 cartridges BB Gun CO2 BB Pistol CO2 Airsoft Pistol and CO2 Paintball Markers Snug fit Solid Seal (8G-10PC)
Guard Dog Security$20.0410 rev
KONG MING CAR 8 Gram / 12 Gram CO2 Cartridges Non-Threaded High-Grade CO2 Cylinder CO2 Cartridges for Paintball Guns Pellet Guns BB Guns and Airsoft Guns (8G-10PCS)
KONG MING CAR$9.46280 rev
KONG MING CAR 8 Gram / 12 Gram CO2 Cartridges Non-Threaded High-Grade CO2 Cylinder CO2 Cartridges for Paintball Guns Pellet Guns BB Guns and Airsoft Guns (8G-30PCS)
KONG MING CAR$23.13280 rev
Soyishi CO2 8g Soda Cartridges for Soda Maker Food Grade Seltzer Water Cartridges Non-Threaded Soda Chargers Compatible With Soda Siphons(10 Pcs)
Soyishi$10.9850 rev
Trending
90-day click momentum
QSBENI 24 Gram CO2 Cartridge Life Jacket Rearming Kit Auto/Manual PFDfor Inflatable Life VestRefill Metal Bottles 1/2-inch CO2 Cartridges
QSBENI$8.694.4★
Guard Dog Security 8 Gram / 12 Gram Co2 Cartridges Non-Threaded CO2 cartridges BB Gun CO2 BB Pistol CO2 Airsoft Pistol and CO2 Paintball Markers Snug fit Solid Seal (8G-10PC)
Guard Dog Security$20.044.1★
Mosa Seltzer Parts 10 pcs for Making Sparkling Water
Mosa$14.844.5★
KONG MING CAR 8 Gram / 12 Gram CO2 Cartridges Non-Threaded High-Grade CO2 Cylinder CO2 Cartridges for Paintball Guns Pellet Guns BB Guns and Airsoft Guns (8G-30PCS)
KONG MING CAR$23.134.4★
KONG MING CAR 8 Gram / 12 Gram CO2 Cartridges Non-Threaded High-Grade CO2 Cylinder CO2 Cartridges for Paintball Guns Pellet Guns BB Guns and Airsoft Guns (8G-10PCS)
KONG MING CAR$9.464.4★
What buyers say about 8 gram co2 cartridges
What buyers praise and complain about, mined from review topics.What buyers love
“They are very nice and work perfectly and I love that theyre priced so inexpensive”
“Exactly what I needed”
“is affordable”
“Universal fit”
“easy to use”
“they do the job”
“Good so far still have one sitting in my pistol charge so far”
“fun”
“making them compatible”
“They have a durable metal shell, that won't break”
What buyers complain about
“These are slightly more expensive than what I would pay locally”
“Too small”
“Garbage”
“purchased and it didn't fit my Onyx A/M 24”
“No bobbin everything else false advertisement”
“The cartridges I received have failed to perform at all”
“So far 8 of 10 have leaked immediatelyupon puncture”
“Eazy to use”
“Either my BB gun or the cylinders themselves deplete fast”
“I got distracted by the fancy gold color”
Common questions
- Is 8 gram co2 cartridges profitable to sell on Amazon United States?
- The niche generates $53K/yr across 17 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -13.2%. Flapen's verdict: Skip it (48/100).
- How competitive is the 8 gram co2 cartridges niche?
- 12 brands and 31 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 78% of demand.
- What do buyers complain about in 8 gram co2 cartridges?
- Top complaints mined from reviews: Value For Money, Size-Overall, Quality-Overall. The return rate is 0.0%.
- When does demand for 8 gram co2 cartridges peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the 8 gram co2 cartridges niche?
- Listings span $8.39–$40.11; the average listing price is $18.52 (sweet spot $15–$100). The average incumbent carries 1,419 reviews — the moat a new listing must climb.