Review on TOAUTO A3 PCP Air Compressor, Unique Vertical+Wire Spool Portable Design, Auto-Stop, Oil/Water-Free, 4500Psi/30Mpa, 8MM Quick-Connector For Paintball/PCP Air Rifle/Tank, 110V AC Or 12V Car Battery by Cedric Edwards

I couldn't wait to get this compressor as a more convenient option to my PCP hand pump, Nitrogen tank and local scuba supply shop. Well it sure beats the hand pump and driving to the scuba shop. Not nearly as fast as charging from my large nitrogen tank, but that tank does run out and needs to be exchanged. Takes about 20 minutes to charge a small tank and needs to rest for 10 minutes before running again. Easy to use and super easy to take into the field. Not so much with a 150 lb tank. I think it's a great addition to a large tank for the avid shooter. You simply can't beat the speed in charging from a large tank. But in the field with the ability to run from 12 VDC you can't beat a compressor. Connect the hose, set the pressure, turn it on and walk away. It's that easy.