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The Bs Recon

or how to have fun with spare parts

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#1 CaliforniaPants

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Posted 11 February 2010 - 12:43 AM

Today we will be making this:
Posted Image

Its a recon powered by a BS tank, that utilizes the stock breech setup and clips. This entire writeup is written after the fact, so if anything is unclear feel free to ask and I'll be glad to help.

You will need:
A recon
A pump
A BS tank
A hornet blast button (they are smaller than any others)
and some replacement tubing

First things first, rip out all the useless stuff, including the spring and catch. Then take a screwdriver to the back of the plunger tube and pop that cap off. Then dremel/drill out the crap thats in there , but be sure to leave a bit of a lip at the bottom so the plunger head doesn't go too far. Pretty much, make it look like this:
Posted Image

After that, get your BS tank and cut off the barrel while leaving about a half inch stub. The stub should fit quite well in the back of the gutted plunger tube. Then go about setting up your trigger and pump, mine looked like this:
Posted Image

Make sure to leave enough tubing for the BS tank to slide backwards with the plunger tube its going to be mounted in.

Now, for the inside. First take out the air restrictor and all that. Then make sure your plunger tube and breech are all closed, and glue the plunger tube to the other part of the plunger, like this:
Posted Image

After this, you're going to need to make some modifications to the inside of the shell and trigger. Sand both sides of the shell until they look like this:
Posted Image

And sand down your trigger till it looks like this. Also, cut down the little spring nub too, because thats whats going to be pushing the trigger.
Posted Image

In the end, all of your internals should fit together like this:
Posted Image

Now close it up, and give it a test! I would recommend putting the stock on and then gluing the BS tank in, just to help protect the tank a bit. Feel free to modify the breech in any way you'd like. I did something a bit like Mehku's telescoping barrel thread, but I took the dart tooth all the way out so it sealed right into the PETG. I have the barrel extension on to cover the bare PETG.

One more thing: Yes, I know this was done before with a 4B or a blast bazooka or something, but I wanted something that was a little more compact, had an internal trigger, and looked better.
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#2 HOTH

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Posted 11 February 2010 - 01:15 AM

I really like the trigger mechanism with the blast valve. Nice job.
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#3 thebob13666

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Posted 11 February 2010 - 07:43 AM

I have a few questions for you. Does the clip still function, and do you still need to pump for every shot?
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#4 Ambience 327

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Posted 11 February 2010 - 09:05 AM

Seriously? A little reading and common sense will tell you that...


...yes, the clip still works.

Its a recon powered by a BS tank, that utilizes the stock breech setup and clips.


...yes, you need to pump for every shot.

He's done very little work with the pump, tank and blast button. Really, the have just been placed where they need to be in order to function. To make a semi-auto of any kind, you need at least two airtanks/bladders - one to hold the shot, and one to hold the "backup air" for lack of a better term.


That said, great work on this blaster CaliforniaPants. It is simple and effective. What kind of ranges are you seeing? Those BS tanks pack quite a punch, and your breech should be a bit more air-tight than stock with your PETG addition, so I expect it to outperform a decently modded Recon.

Edited by Ambience 327, 11 February 2010 - 09:09 AM.

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#5 Hornfreak

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Posted 11 February 2010 - 07:33 PM

That said, great work on this blaster CaliforniaPants. It is simple and effective. What kind of ranges are you seeing? Those BS tanks pack quite a punch, and your breech should be a bit more air-tight than stock with your PETG addition, so I expect it to outperform a decently modded Recon.


I haven't had the chance to measure ranges, but it's outperforming recon ranges which makes it fine with me. Also, I'm working on a external tank for it which I'll probably post here.
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#6 CaliforniaPants

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Posted 12 February 2010 - 12:46 AM

Whoops, that last post is me. I was on a friend's computer and forgot to sign in as myself.
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