At 4500psi you get 50% more shots per fill than a 3000psi system, 900 shots per fill or more. Fast fill time, 6-7 seconds for a 68ci bottle from 3,500 psi source to 3,500 psi fill. Lightweight, machined aluminium body, anodized to an attractive, durable finish. Reduced spiking and ball velocity dropoff, the smooth action regulator almost eliminates the effects of spiking and thus allows a higher fire rate and less velocity dropoff. Unique, patented design that has been tried, tested and proven in many heavy duty industrial applications before it's application to paintball - the engineers have a wealth of knowledge and experience that is rigorously applied to getting results on the paintball field.
The MACDev Max Attack Air System is older, so while it may be available used and in a few cases new, it is not commonly available anymore.
1. One of the most consistent HPA systems out there. My Max Attack will run my autococker without a secondary regulator. With this setup, I have gotten +/- 3 fps. Not bad considering that there is no secondary reg.
2. The recharge rate is unbelievable. I hooked it up to a Defiant set on fully auto and let it rip while passing the barrel over the chrono every few balls to get a reading. The velocity never dropped below 7 fps of where I had initially set it, and I never got any spikes higher than 8 fps. Mind you that was on full auto.
I sat in with Gramps(the US distributor for MacDev) one day and he told me the reason why the system is so consistent and recharges so well is that the regulator was built with a design(I won't go into details, cause I can hardly understand them myself) that allows for the highest flow rate. With the advent of many of the low pressure guns on the market, the necessity for higher flow rates has increased. Lower pressure(P) in a constant volume(V) chamber means that a decreased amount of air is needed(n) at a constant temperature(T), since PV=nRT(a physics equation). Most regs decrease pressure by narrowing the orifice which the air goes through, therefore the amount(n) decreases which decreases the pressure(P). But this sort of design decreases the amount of flow(much like pinching off a water hose). And decreased flow-- decreases recharge rate(just like filling up a bucket with a pinched off hose). Somehow, MacDev scooted around this problem and designed a HPA regulator which decreases the pressure without affecting the flow.
3. The other review of this system said that you can't get drop-forwards and cradles for this system. This system has a bracket which attaches to any standard two-hole autococker bottom line. And there are a ton of cradles for that, so you can find one.
1. The old bottles are heavy--like the old Air America systems( the older Raptor and Apocalypse systems) because they are wrapped alumminum(I heard) and because this was before the time of fiber wrapped bottles. The newer Max Attack systems are fiber wrapped and are extremely light.
2. The fill nipple is big and you need an adapter. However this was first designed as a safety feature so that field operators knew that these were 4500 psi. bottles(because of the adaptor) and because these these nipples are acutually rated to something like 5000 psi.
3. The gauges are big and, depending on your setup, can feel funny when you shoot lefty.
4. Expensive----but worth every penny(IMHO).
I love this HPA system for one reason only. PERFORMANCE. That's the reason why we all buy them, right? Cause co2 works just as well, except for the occasional spiking, freezing, dirty air...ect. Compared to a number of systems I have tested(including Air America), this one has had the best performance that I have seen. MacDev just came out with a newer generation so keep an eye out(I have one and it's even better)!!!
9 out of 10
Last edited on Saturday, January 29th, 2005 at 7:53 am PST
68 4500 Max Flow, 68 4500 PMI, 68 4500 Crossfire, and 68 4500 Armageddon.
Blue GZ Timmy with Smoke Grey 12 volt x-board hopper, 68 4500 Mac Dev Max Attack air system, Chrome Shock Tech drop, and 10" Freak black back and silver Freak front.
The new Max Attack tanks like mine are light. They have a fast recharge rate and are consistant. I like the tank a lot. It's not that popular but it is a great system. Keeps up great with my GZ Timmy. Also, kept up great with my old Dye Cocker.
The pressure gauge only goes up to 4000psi. when it's a 4500psi. tank. That's about all I can think of.
The tank is great. It is not as expensive as some other systems and keeps up with them. It doesn't take much matenence, and it works really well.