Page 7 - Benjamin Hand Pump, Fits Crosman Reviews

Ease of use and durability

Lighter weight and longer hose

It's heavier than I was hoping

the pump workeds well but like i was told its a pain in the butt to pump my rifle up to 3000 lbs im glad i orderd a air tank

make the bottom plate bigger so you can stand on it

Good solid construction, fairly straight forward instructions.

Wish they would make one easier to pump at higher psi. Im in good shape but even made me breath a little.

Stay in shape if you wanna use this pump. If your not in shape this pump will get you there lol.

Works well. Eat your Wheaties and be patient.

Consider a carbon fiber air tank. This works as designed but is slow and tedious.

Easier to use than what I've seen online. Super simple,easy,and fast to fill my marauder PCP.

It takes me 15 mins to get my marauder to 3000psi.

It does what it is supposed to do! It seems to be built fairly well but the jury is still out. I will add to the review after another month with this pump.

I believe for the money it could come with an external moisture trap and with todays technology it should be easier to pump. I as always believe it could be improved and the price remain the same.

It gets the job done but if you are of smaller stature you may want to consider a 4500psi. tank. I am 6ft. 215#s and consider myself in excellent shape. I have no problem using this pump and when done properly it does its job nicely. On the other hand my wife who is also in excellent shape and a 120#s has trouble getting to 3000psi. with this pump, even using it properly and putting her weight into it. Bottom line is the pump is built well and works as it is supposed too after filling my gun from 2000-3000psi. a couple hundred times it is still working fine but if you are gonna shoot anymore than 30 shots or so in a session buy a carbon fiber tank, you will be glad you did!! Shawn

Easy to set up. Sold built. Thick padded grips.

Wider stand, longer hose. Works just fine though the way it is.

This is my first PCP hand pump so I have nothing else to compare it to. It works just fine, just hard work to get the pressure up to 2700 psi on a Marauder. It took me 220 pumps to go from 0 to 2700 psi. It works good.

While it worked, I liked it. It functioned as it should have for the 25 re-charging cycles that I put it through

better durability. Use a stronger metal and stronger attachment system for the foot plate. Mine just now pulled apart, and stripped out the threads in the process. This is due to the use of weak metal in the threads and only 2 screws to hold the foot plate on.

Consider another option, unless benjamin has updated the design recently.

Feels a bit clunky when pumping, almost like it's binding on the tubes. Works very well though.

Rubberized grips would be more comfortable and a slightly larger base plate would be nice.

It's the least expensive pump offered, and on sale it's a great deal.

I have two of these pumps. The first one I got with my first disco.(Liked the disco so well, I built two more. Disco upper, 2250 lower.) It worked well for charging my discoveries for about 4yrs, until I decided to tune them "up". Charging them to 2300-2400psi, it didn't take long for the pump to fail. So I began the tribulations others have described. Finally, I considered that my time would be better spent shooting, than poopn with that pump, so I bought another one. Whoops. It was definitely new, but it didn't work well at all, straight out of the box. By then I had researched these pumps online, and the conclusion I reached, was that if I couldn't fix it myself, it wasn't going to get fixed. So, I bought a Hill pump. The Hill got me going again.(And is a higher quality machine.) In the meantime, the ~$400 I've got into these pumps has motivated me to continue to work on getting a reasonable service life out of them. Having studied them to where I understand how they accumulate and transport a charge, and having studied the operational theory for the teflon packing ring that accompanies the piston ring, I see that there is an engineering error in these pumps. The engineer that drew the plans for these pumps, was familiar with the Fluid Dynamics of Hydraulics(liquids), but not the Fluid Dynamics of Gases, which is a more rarefied atmosphere of Fluid Dynamics.(So to speak) The teflon packing ring is the indicator. In Theory, that packing ring should be above/upstream of the

piston o-ring, even though the split in the ring represents a defect in the seal. And if these pumps were transporting liquids, it would probably work well enough. But, the density and viscosity of water(liquids), is so-o much higher than the density and viscosity of gases, that the split in the teflon ring represents a significant breach in the seal. And the pump won't work with that ring in the position where it should theoretically be located. In order for the o-ring itself to make the seal, at the pressures the pump is capable of, the tolerance between the piston head and the cylinder walls must be at minimum, so that the o-ring is not extruded into the gap between the piston head and the cylinder wall by the pressure. That extrusion effect is why these pumps require significantly greater force beyond ~2500psi, because the ring is forming a wedge between the piston head and the cylinder walls, which is what that teflon split-ring was intended to prevent. With a 90durometer Viton o-ring on the piston head, these pumps will charge discoveries in good order. Going near or above 2500psi, will greatly reduce service life. If you want to charge to 3000psi, get a Hill. The Hill pump doesn't have a teflon ring, because the Hill pump, doesn't Need one. The piston diameter on the Hill pump is smaller than on these pumps, which provides a greater mechanical advantage. It takes a few more strokes with the Hill, but the Hill will produce 3000psi with ease. I use it on my Marauder.

I bought another Hill pump for my son, to go with the .25synrod I gave him for xmas. I also taught him how these pumps operate, so that the Hill pumps will probably be giving service long after I am gone. What else would I tell you? If you have one of these pumps, I feel your pain. The Treatment I recommend, is the Hill Pump. Accept No Substitutes.

This pump does what it should, I bought this with the Benjamin Discovery a while ago and it has been working just fine. I've put many many rounds through my gun, using this pump to fill it every time, and never once have I had a problem.

Maybe a slightly longer hose, and a lower price...

It is the cheapest way to fill your PCP (although I don't know how it does with the Benjamin marauder because I don't have one), and it gives you a little bit of a work out, but if you're already dropping a bunch of money on a PCP rifle other than the Benjamin Discovery, I would recommend getting a cheap tank. I bought the Air Venturi 4500psi tank for $300 because I plan on getting higher psi PCP rifles, and let me tell you, filling a gun with a tank instead of the pump is much nicer. For a couple hundred dollars more, I think it's worth the investment...

Able to fill rifle to 3000psi without expensive scuba tank.

I'm 5'11" and 185lbs. I find the pump strokes to be fairly difficult once the tank pressure reaches 2600psi. If you're much smaller than I am, you may have a workout on your hands.

Built tuff and it does the basic job BUT could do better.

Make the hose longer (As you’re basically placing the rifle and the SCOPE on ground in order to use the pump); Put the gauge in the front with the hose so you can view it while pumping!!! And make it a little taller (I stand 6’4” the tallest the pump goes is 42” with lowest being 24”) How about a sub stand that can raise it up 12 to 14” that could be added as an accessory with some type of hook to rest the rifle on (With the Gauge on the rifle facing the operator) while it is being filled?

Be ready for a workout! And start saving for a TANK or Air Compressor.

What I didn't know, BEFORE I BUTGHT IT.

THE AIR LINE IS A USELESS LENGH!! YOU NEED 2 PEOPLE TO HOLD IT AND SEE THE GAGUES ON THE GUN AND, TO SEE THE PUMP WITH YOUR FEET ON IT YOU MIGHT AS WELL HAVE A 3RD PERSON TO LOOK AT IT!!!

BE PREPAIRED TO GET A LONGER "HOSE", THE WAY THIS IS SET UP IS , WELL UNFRIENDLY/ SUCKS!!

Easy to use and yes, a workout but who can't use that. The pump is well built and priced less then the other pumps available at PA. I am going to purchase a scuba tank in the near future but really do like the fact that I can fill my gun without counting on someone else.

Move the pump gauge so it is easier to read when using the pump.

I originally planned to get the Hill pump but PA was out of stock at the time I bought the Condor SS from them. This pump comes with the right connector to fill the Condor rifle and I'm happy with the pump and love the rifle.

The Benjamin pump works great and is fairly easy to use, Especially for a youngster of 77. Pyramyd service is Outstanding also

I would not change anything except the price. It would Be nice if the price was lower.

It certainly beats seeking out a dive shop looking to Purchase a scuba tank and then having it filled on Passion.

General comment. It took 120 pumps from zero to 2500 PSI. The video put out by Benjamin is a great help in controlling the pressurizing process. Using body weight, especially the last 40 pumps was most helpful.

The pump is easy to operate and yes it does harder to pump it as the pressure builds up inside the gun's tank, but that is perfectly normal and expected. A bit of a workout, never hurts anyone. I also added a desiccant filter kit to it from Sun Optics, which gives me extra dry air into the pump.

I would like to see Benjamin add a better desiccant filter apparatus on it. I'd spend the extra $25 that the filter costs, if it was included.

Some guys say that this pump isn't all that great, I haven't experienced any problems with it. Sun Optics does make a very nice rebuilt O-ring kit for the pump and it comes with full instructions on how to rebuilt it, if needed.

Well made and gets the job done.

A way of traping the moisture.

Came in a package deal with the Benjamin Marauder pistol.

Its handy, easy to carry where ever you go.

The cost not really worth it! Make the pump more easy to use and give more pressure to fill the tank.

The pump is okay if you have no choice!? but the best choice is the Scuba tank...Im telling you the truth this is the best and easy way to fill your Riflesand its not really expensive and its worth it! Than sweating and muscle-ling the pump and not going anywhere?! There's a better way of exercising and its more fun!