Booster Pump

Lot of tubes, valves, and physics in this little precision instrument. First off, its a little daunting to know what goes where and why; But, instructions are very straight forward and easy to understand. Assembly is a breeze thereafter and initially you're nervous to hit the the fill tab to start using (I mean c'mon, your dealing with 4500 psi in a spaghetti tube, right). Once you use this thing a couple of times........wow!! is all I can say. My biggest issue is that I bought an Umarex Hammer and its fill pressure is 4500 psi, so off my 74cuft tank, that might give me 1 or 2 complete fills, maybe. With this little gem, I have @25-30 fills. Otherwise, I would need to fire up my compressor every 4 shots. I actually bought this after I got my gun and before buying ammo (from Mr. Hollowpoint of course). I hadn't even fired it down range yet, except once to get an idea of decibels and see what others had commented about, 2 shots is all)My first time refilling the gun was with this booster pump and what a life and time saver. Well worth the cost in ease of use, manageability, and increased range time. All I can say is thanks to Maddog and Arytekk. Great little unit, easy to use and will allow for expansion of fills by adding another smaller tank, or of equal size, to drive the pump instead of using the your primary fill tank to do both. If you're not big into air gunning, all you need is a medium to large tank and that's it, BUT, if your big into air gunning, have multiple guns you like shooting, including big bores, then YOU NEED THIS UNIT!!! Also, doing the math, it will extend the life of your compressor by forcing you to fill less often versus every tank emptying moment at the range or afield. Also, its very mobile and no need to drag along a hand pump in case you tank runs out. No wires, no lubrication, no worries, no bullshit! Get yourself one!!!! You won't be disappointed.

Well, I've had this booster pump for about 3 months now and to tell you the truth, I don't know how I've lived without it all these years? Everything was packaged super well. Shipping and ordering went smooth. The Booster has been running like a top and not one single hiccup. Has worked flawlessly every fill. I've filled my Huben to 300 bar with no problems. Would highly recommend this booster to anyone who has a Huben or Big Bore air rifle.

I have owned this for over one year and I can say this thing is great. If you have an airgun that need 4,500 psi this pump will always give the needed pressure. I have it hooked up to a scuba tank and as the pressure goes down in your scuba tank, just use the booster bump and you always have 4,500psi. This is a must if you need 4,500 psi.