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Building a airsoft sniper rifle

Posted: Tue Aug 07, 2012 10:48 am
by wyz2285
Recently I got a lot of good stuff, hydraulic/pneumatic parts, etc.
So, I decided to build a airsoft sniper rifle, my objective it´s to see how accurate a airsoft bb can be.
I used a 1/4 3-way valve to pilot a 1/4 QEV, the exhaust port of the 3-way is suppressed. But I´m not going to make it semi-auto, instead I will use bolt-action plus magazine for reloading.
The gun isn´t finished yet, I still haven´t decided the barrel/bolt configuration.
Video made at 5 bar, I tested 10 bar after the video, the QEV really rocks off the ground :D
[youtube][/youtube]

Posted: Tue Aug 07, 2012 12:28 pm
by Brian the brain
Your stuff is getting better and better!!

Love the clean look so far!

I'm looking forward to seeing it completed.

Posted: Tue Aug 07, 2012 1:18 pm
by wyz2285
Thank you sir :P
By my stuff getting better and better you meant the scope isn´t it :lol: actually it wasn´t expensive.
For the valves, I bought like 10 DCVs plus a couple of QEVs and other parts for less than 100 euro :P :D also now I have 6mm steel bbs :twisted:

Posted: Tue Aug 07, 2012 1:31 pm
by dewey-1
wyz;

That is a very appealing creation that you have done!
Excellent work and keep it up. :)

Posted: Tue Aug 07, 2012 1:36 pm
by wyz2285
Thanks dewey-1, BTW I also got the circuit boards printed, 20 copies for just 30 euro :D
Hope I can finish this gun this month, but I have a girlfriend to take care now :?

Posted: Tue Aug 07, 2012 1:40 pm
by Goats spudz
That looks really nice, you should make the barrel come out of the grey tube.

Posted: Tue Aug 07, 2012 1:42 pm
by dewey-1
wyz2285 wrote:Thanks dewey-1, BTW I also got the circuit boards printed, 20 copies for just 30 euro :D
Hope I can finish this gun this month, but I have a girlfriend to take care now :?
Which version of the board?
Post a picture of the PCB.

Women will do that to you! Ask JSR! :D

Posted: Tue Aug 07, 2012 1:49 pm
by wyz2285
Goats the barrel isn´t there yet :wink:
dewey-1 I got 10 copies of the semi/full auto(24v version)
and 10 copies of the semi one. I will post pictures when I find them :? I haven´t seem them since I arrived home (I printed them while I was in China, there is no such service here in portugal) :roll:
And, why should I ask JSR :lol: ?

Posted: Tue Aug 07, 2012 2:33 pm
by Labtecpower
looks great! do you already have a barrel? I can get some quite good 6 mm hydraulics tube :)
And, why should I ask JSR :lol: ?


Well, the poor guy was once forced to bake a cake...
Not to mention he isn't allowed to buy a robotic baby.

Posted: Tue Aug 07, 2012 3:25 pm
by wyz2285
Well, the poor guy was once forced to bake a cake...
Not to mention he isn't allowed to buy a robotic baby.
Well currently I´m not "forced" to do anything yet, but there are stuffs that I know I shouldn´t do now :roll:
I do have a barrel, one of the best I have right now :) but I need a new 6mm barrel source, any details?

Posted: Tue Aug 07, 2012 3:38 pm
by Labtecpower
I can get 6 mm ID, 10 mm OD hydraulics pipe very cheaply, in reasonable lengths. (up to 2 meters)

They are made out of 316L stainless, I need to do a precision measurement on the ID tough.

Posted: Tue Aug 07, 2012 4:02 pm
by wyz2285
Price? If the ID is less than 6.1 mm it´s ok, but it has to fit a bb of course.
And are they straight? Keep 2m of 6mm tube straight during shipping it´s difficult I guess.

Posted: Tue Aug 07, 2012 4:37 pm
by Gippeto
Have to agree with everyone else...that IS looking good. :thumbup:

Kind of a Condor/tube gun thing going on that has major appeal. :)

Posted: Tue Aug 07, 2012 6:07 pm
by Labtecpower
Price? If the ID is less than 6.1 mm it´s ok, but it has to fit a bb of course. And are they straight? Keep 2m of 6mm tube straight during shipping it´s difficult I guess.
Very very cheap, someytimes I can even get 60 cm lengths for free.
I believe it's under 6,1 mm, fits a bb very well, I already tried.
I'll test the straightness tomorrow.

Posted: Tue Aug 07, 2012 6:41 pm
by Zeus
Nice work Wyz, looking forward to seeing it finished.

I hate to ask too, but you didn't pick her up fairly cheap in China did you?