CoolFire Trainer
Paintball CO2 Fill Device
Paintball CO2 Fill Device
Couldn't load pickup availability
The Paintball CO2 Fill Device is compatible with every CoolFire Trainer Barrel and works with the 20oz Paintball CO2 Tank. It screws directly onto the CO2 Tank to allow re-filling of the CoolFire Trainer Barrel.
Purchasing a CoolFire Trainer Barrel and CO2 Fill Device together results in a $10 discount at checkout!
IMPORTANT: A CO2 Fill Device is needed to make the CoolFire Trainer function. If you do not already own a CO2 Fill Device, please choose one from our selection of CO2 Fill Devices.
Not Building Your Own? Start Here.
Get everything you need in one box — barrel, CO2 adapter, and more.
See All PackagesShare

Paintball CO2 Fill Device
CoolFire Trainer
Perfect fill device for my Paintball tank and Coolfire Setup. Highly recommended Thanks Cool fire Team
very good system, good job guyz
Easy to use to fill up the cool fire trainer barrels.
I am having trouble with my CoolFire Training System. I purchase the 20oz CO2 container, the Paint Ball CO2 fill device and the hardware for my Glock G43X pistol. I get one good shot if I am lucky. I cannot find the correct way to fill the device with CO2 and achieve several discharges. I have looked on line for some sort of trouble shooting guide to walk me through the process but have not found one.
A needed piece for the 30 oz bottles. Works as intended.
Let customers speak for us
from 676 reviewssome of the best customer service i’ve had. they were quick friendly and helpful. thanks.
Phenomenal product easy to use. I have definitely recomended this to my friends and family
Great training tool. Safe and I can now train anywhere with my own gun, safely.
Works great and it will definitely help with my training.
Rapid filament, responsive quality customer service, and life changing for consistent low cost development of skills (trigger control, target transitions, recoil management, etc.)
So far I really Like it. This will save quite a bit on ammo and range fees and travel to practice more often. Never neglect live fire though. One suggested tweak for future releases on the laser, it may stay lit too long and draws a vertical line, not a dot on my initial testing. Also, it may have been my one hand casual shooting to see how it looked.
Awesome training tool. Works very well. Just wish I knew to buy extra stiker tips when I got this to save on shipping. Also nothing says what size to get. Other than that the tool is amazing.
Awesome laser. If you’re buying the G43x barrel, this is the laser to get.
Amazing training tool and vastly superior to dry fire - also integrates with Laser Academy etc.
As usual. Great product. If you’re planing on buying this model, make sure you have the 7/16 thread muzzle laser.
Thanks Boone for your help.
If you've run into clearance issues with EOTECH or other large optics that interfere with sliding the CO2 vessel into place, there is a 3rd party solution available for that. It's the gray plastic piece shown in this photo. Just search for "coolfire extension" on eBay.