Recent content by RiverDevil

When you add the hammer weight，please make sure that the force of the spring is the same：F=kx If you make a new heavier hammer but still use the same meterial，you might change the “x”， "x" would be a bit longer,the "F" would increas. A lighter hammer would be better.

It is your fault,but the designer is also stupid.

Maybe the Temperature causes the Creep. According to :PV/T=nR Of cause the equation above is not suitable for the High-Pressure-Air,but you can learn something from it,that is: If the V is Constant,when the T increases,then the P increases. So,how to judge the Reg is good or bad: Staying in...

Hi dudes: I was told the HUBEN K1 can get a 10mm ctc accuracy at 100 meters by someone; And another one he said he can get a 25mm ctc accuracy at 100 meters; According U guy's description of the accuracy, Was I fooled by fools??? 😁😁😁

Lbl25a: Thanks for your detail explaining.In fact,I can only understand a part of them.:) And because of my poor English,I can't describe it clearly.Sorry for that. I'v said the HUBEN might borrow something from Steyr LP50,a 5-shot-semi-auto pistol. May I ask that if one of the "double ended...

http://e.picphotos.baidu.com/album/s%3D1100%3Bq%3D90/sign=395920e386cb39dbc5c06357e0263255/37d3d539b6003af3de1a9869322ac65c1038b613.jpg Hope U can open this address and this might be the operate mode of the valve，I failed to upload it.

wlbryce： First I want to thank you to do such a job,let all of us know about it clearly. U r much more honest than Chinese People,Chinese Society is full of cheating now,I won't believe any business man immediately of what they said ,just like HD MASTER said that he shot much better than you...

I am just a poor mechanical structure designer,have nothing to do with any person who was related to HUBEN. I am here now is just want to tell u my personal opinions and what I deeply warried about just like what i ever did in the Chinese network. By the way,I want to say that K1 might borrow...

Maybe You should raise up the hardness of the pellet，coz blowing the pellet into the barrel is easy to hurt the head of the pellet and at last you lost the accuracy.I did do a simple calculate that when the pellet was totally blowed into the barrel and leave out of the magazine,that moment,the...

If somebody is interested in HD Master this guy I can show you something he talk about the huben with pictures if you can read Chinese,and now I translate it for you first honestly: 1，I have it，and you even didn't touch it，how dare u talk about it？ 2，I own a sepcial PCP that only I have all over...

aaronchow： Sorry,I don't have friends who ever shot the K1. But I ever saw a video showing the Huben shot at about 50m at home several years ago by HD Master(real nick name is heyday) or someone else，the accuracy of the group is not good.The group is over 3cm I guess,looks a bit big...

I like ED,it looks much better when it had a barrle cover,and also it was a revolution of it.


I won't be shocked with such news. As I know,the model of huben was made in about 2010,and it is illegal at that time because it was just someone's secret toy(Airgun is forbidon in China since about 1998). Then some “smart” people started to think about how to make money with it,then at...

Glad to see u all,especially "Ted".You have so many fans in China,mabye U don't know.LOL. And I m from China. The airgun is forbidden in China after 1998,but now,it still has so many players. PCP is much better than the pool spring gun just like B-31. And,it is much powerful. I'v seen so many...

Nice.