Adventure Airsoft tells his experience on using the Tippmann Carbine M4 V2 which can be powered with CO2 or HPA... "OK fellow cake eaters it's that time I was dreading a review of my well used  but not sold Tippmann Carbine V2 HPA. If you’re wondering why I sold it hit that subscribe button for more content on its replacement.

The gun is awesome value for the money and the only reason it had to go was to fund another project but if the time comes again I would defiantly get another.
Please send questions and comments, I love hearing from you."