---
title: "8 Gram Co2 Cartridges — $53K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/sports-outdoors/8-gram-co2-cartridges"
last_updated: "2026-08-10T20:06:42.766Z"
locale: en
meta:
description: "Niche score 48/100 · $53K/yr market · 36K searches/yr · $18.52 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $53K/yr market · 36K searches/yr · $18.52 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "8 Gram Co2 Cartridges — $53K/yr Amazon US Niche (2026) - Flapen"
---
# **8 gram co2 cartridges**
**Skip it**
A small market ($53K/yr) — this niche doesn't clear our bar today.
Market size 13Growth 18Conversion 79Competition 41Returns 100Price range 78Avg price 84Brand share 44Review moat 52Quality gap 43
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$18.52**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****7.9%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Great****$8.39–$40.11**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****1,419.35**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****78%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Competition**
**Okay****60%**
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 ~~](https://flapen.com/research/methodology)
## **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.
1K800Holiday '24Spike '25Holiday '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/sports-outdoors/8-gram-co2-cartridges/trend)
## **Top 8 gram co2 cartridges search terms**
- **8 gram co2 cartridges**16K/yr-9.9%7.2% conv. - **8g co2 cartridges**10K/yr-15.5%7.1% conv. - **co2 cartridges 8 gram**3K/yr-5.5%5.8% conv. - **8 gram co2**4K/yr-29.1%5.8% conv. - **8gram co2 cartridge**3K/yr-14.4%8.9% conv. [**All search terms **](https://flapen.com/research/us/sports-outdoors/8-gram-co2-cartridges/search-terms)
## **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.
0%5%$3K10%$5K15%$8K20%$11K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 17 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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**$9.46**4.4★280 rev](https://www.amazon.com/dp/B0DF73J2PZ) [2**Byrna 8 Gram CO2 + Oiler Cartridges | 10 Count Pack | for Byrna SD/CL/HD/EP - (9 CO2 + 1 Oiler Cylinders)**Byrna**$19.37**4.8★1,630 rev](https://www.amazon.com/dp/B08Y79HQTK) [3**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**$15.07**4.6★512 rev](https://www.amazon.com/dp/B0C5CVZ455) [4**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**$30.11**4.6★773 rev](https://www.amazon.com/dp/B0C13XDFHT) [5**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**$40.11**4.9★18 rev](https://www.amazon.com/dp/B0BR7TZZMK)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Mosa Seltzer Parts 10 pcs for Making Sparkling Water**Mosa**$14.84**33 rev7mo ago](https://www.amazon.com/dp/B0G692R9M3) [**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**$20.04**10 rev8mo ago](https://www.amazon.com/dp/B0G2MH5BTJ) [**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**$9.46**280 rev1y ago](https://www.amazon.com/dp/B0DF73J2PZ) [**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**$23.13**280 rev1y ago](https://www.amazon.com/dp/B0DF74FBP5) [**Soyishi CO2 8g Soda Cartridges for Soda Maker Food Grade Seltzer Water Cartridges Non-Threaded Soda Chargers Compatible With Soda Siphons(10 Pcs)**Soyishi**$10.98**50 rev1y ago](https://www.amazon.com/dp/B0DD4DGKJ6)
**~~View all new products →~~**
### **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**$8.69**4.4★**▲ 377%**](https://www.amazon.com/dp/B0D3WN62LD) [**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**$20.04**4.1★**▲ 242%**](https://www.amazon.com/dp/B0G2MH5BTJ) [**Mosa Seltzer Parts 10 pcs for Making Sparkling Water**Mosa**$14.84**4.5★**▲ 228%**](https://www.amazon.com/dp/B0G692R9M3) [**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**$23.13**4.4★**▲ 31%**](https://www.amazon.com/dp/B0DF74FBP5) [**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**$9.46**4.4★**▲ 26%**](https://www.amazon.com/dp/B0DF73J2PZ)
**~~View all trending →~~**
## **What buyers say about 8 gram co2 cartridges**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**26%
*“They are very nice and work perfectly and I love that theyre priced so inexpensive”*
**Advertised Vs Actual Product**17%
*“Exactly what I needed”*
**Value For Money**16%
*“is affordable”*
**Size-Overall**11%
*“Universal fit”*
**Ease Of Use**7%
*“easy to use”*
**Efficiency**5%
*“they do the job”*
**Charging**2%
*“Good so far still have one sitting in my pistol charge so far”*
**Fun/Entertainment Experience**2%
*“fun”*
**Compatibility-Overall**2%
*“making them compatible”*
**Leak-Proof**1%
*“They have a durable metal shell, that won't break”*
### **What buyers complain about **
**Value For Money**17%
*“These are slightly more expensive than what I would pay locally”*
**Size-Overall**11%
*“Too small”*
**Quality-Overall**8%
*“Garbage”*
**Compatibility-Overall**7%
*“purchased and it didn't fit my Onyx A/M 24”*
**Advertised Vs Actual Product**6%
*“No bobbin everything else false advertisement”*
**Functionality-Overall**6%
*“The cartridges I received have failed to perform at all”*
**Leak-Proof**6%
*“So far 8 of 10 have leaked immediatelyupon puncture”*
**Ease Of Use**4%
*“Eazy to use”*
**Durability**3%
*“Either my BB gun or the cylinders themselves deplete fast”*
**Color**3%
*“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.
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