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MR_DR_PEP Wednesday, November 9th, 2005
Period of
Product Use:
Only tested0 of 2 people found this review helpful.

More than 5 years
Marker Setup: Tippmann A-5; Low Pressure Kit with Shock Reg; Cat5 68/4500 HPA; 14" Werks Barrel; Backup Flatline; SAW Stock; BSA 30mm DOT ... more, more.
Strengths: Improves accuracy
Weaknesses: Expensive and no REG
OK, finally got everything going. I replaced the O-ring on the hammer and boosted the pressure up to 500psi. I will experiement with it some more to see if I can lower the pressure down to around 400psi

I have had nothing but problems with the LPK since I got it.

I installed everything (even without directions) and then checked the directions just to make sure everything was right. I installed the powertube insert, bolt, bolt insert, new cyclone feeder line, volumizer, volumizer to reg, and a AIM shock reg.

I gassed it up with my HPA tank and set the gauge to about 350psi to test it first. I pulled the trigger and it just goes into full auto. So I figure that that's not enough pressure and took it up to 500psi... still not enough to make it recock. I oiled everything correctly and made sure that I payed attention to all details. For the cost and the fact that it doesn't work for me after installation forces me to give this a poor rating until something happens for me. I should be able to gas up and start shooting away at 325psi as it says with no problems. I am not a Tippmann hater. I have always owned a tippmann and probably always will, but Tippmann did not meet up to their own standards when they put this kit together. It doesn't even come with a regulator.. that also makes it annoying. I will continue to 'play' with it and do some more research to make this kit work. I understand that the majority of people have had success with the kit, but that's just not the case for me and about 20% of others I have talked to about the LPK.

I have observed that cocking it is difficult at first (probably as the hammer is sitting inside the powertube). It feels like it's too snug. This could also be a part of the problem I'm having. I will change my rating when I get it to work. I'm just a little disappointed.
Conclusion: I rate a 9 because of previous problems
9 out of 10Last edited on Thursday, November 10th, 2005 at 6:03 pm PST

Review Comments
kessler4130 Thursday, November 10th, 2005 | 4:11 am PST
There used to be abn issue with one of the fittings restricting air and it had to be drilled out, I don't know if it has been addressed by tippman yet since the problem is about 2 years and still ongoing. There should be a 90* elbow that came with it for your asa, check the flow through that, I believe that was the problem, if so I would switch to some macro line and macro fittings. My friends had the same problem he had to crank his up to nearly 800 psi just to get it to run, not sure what reg he had though, most only go to 600. And 600 psi on a low pressure kit defeats the purpose of the whole damn thing.

K2z Thursday, November 10th, 2005 | 11:15 am PST
I had same problem. Tippmann will tell you to turn your front velocity screw all the way in
and then back it out one and half turn. The marker needs some back pressure.
You then can adjust your velocity with your regulator pressure. More pressure more velocity. I think Iím running about 450 p.s.i.
Thank some time and play with it. I love mine.
Hope this helps

MR_DR_PEP Thursday, November 10th, 2005 | 12:13 pm PST
Well, I know it's not the 90* fitting because I had a DIRECT line going to my reg. I'll be testing it today and will try setting it to 450psi. I will also adjust my velocity screw all the way in and see if that creates enough backpressure. Thanks for your quick replies..

Invictus Sunday, April 23rd, 2006 | 3:55 pm PST
Call Tippmann, talk to one of their techs and request a new rear bolt spring. Next thing you need to do is polish your internal receiver halves, and buy a better freaking reg.

If you need help on how to polish it and troubleshooting tips for the A-5, visit: or

These two sites are where all the membership from the old A-5 Owners Group have gone to.

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