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Swarmfire Brass Turret Mod (hybrid Turret)


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#1 ice

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Posted 31 March 2011 - 02:22 PM

So, lots of us Im sure have the swarm fire by now. The internals aren't to impressive, but the blaster it self is, well, a blast to modify. Everything is incredibly simple, and there's alot of room for improvement. After removing the AR's in the turret and plunger tube, and throwing in a night finder spring (along with a smaller one from a crossfire I believe), I was pulling off around 45 to 50 feet consistently. That was ok, but I wanted a little more bite from such a cool blaster. The turret to plunger seal is incredible, so I didn't see anything that needed to be done there. After examining the rotation mech, I decided it would probably be strong enough to push brassed barrels, so I decided that was the next thing to be done.

Most of nerf's barrels are beveled, as we all know. When experimenting with the turret, I noticed the back half of the barrels had a part that curved in and held darts with the same tightness and seal as 17/32's brass did. They made a perfect seal with the turret plate, when in turn makes a great seal with the plunger, so I didn't feel a need to remove the whole barrel. Here's where the fun part comes in, only about half of each barrel is brassed. Before I completely did up the turret, I checked the range difference between a fully brassed barrel, and one that only had brass in the front. After multiple tests, with the same tagger darts, the ranges where identical. Thus, I present, the hybrid turret.

Start out by doing this mod: link

Once the pegs are removed and sanded (as shown in above link), take out a cone sanding bit and snap it onto your dremel. Lightly, sand the front part of the stock barrel, until you can ram a peice of 17/32's brass into it. The first few are touch and go, just a little bit of sanding, and then check the barrel fit, but after about 5 barrels, you get a sense for how much should be sanded. The barrels should fit VERY tightly, but should still be able to be pushed into the plastic.



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(yes, I did a bit of the turret before I started taking pictures, just so I knew it would work correctly. So sue me)





Push the brass into the turret as far as it can go (till it hits the part of the barrel that matches it's size) and draw a line with a sharpie.


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My barrels were each about 1.25 inches long. Then, cut the barrel with a metal cutting disc or pipe cutter. If using a pipe cutter, make sure to then widen the barrel again so it remains the same size the full way through. Then, sand down the edges of the brass, and the inside, making sure there are no sharp edges or metal files still attached. I did this by starting off with a belt sander, and then moving to fine gritt sand paper.


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Take your nice, shiny piece of brass and push it into the sanded barrel. Make sure it goes all the way in and meets the point of the barrel which is ment to remain plastic. As assistance in pushing in all the way, I placed the turret rounded side up on my work table and pushed down on the brass with the end of a screwdriver. It's important to simply push and not hammer, as to not dent or warp the brass.



Before pushing in
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After pushing in
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And that's it! Now repeat that. 19 times. Enjoy



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And then your left with a shiny new turret :P
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Here's the one I had going the full way through.
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(it wasn't cut in that picture yet)




Install that back in your swarmfire, and enjoy. I saw about a 10 foot range increase, bumping my ranges up to 55-60 feet flat. Keep in mind, I still haven't found a good spring for it, and when I do, Im hoping it goes around 70. I haven't had any problems with the rotation mech handling the extra weight, it takes it quite well. While this mod is repetitive, it's actually alot of fun. Hope you found this useful.

Edited by ice, 31 March 2011 - 02:23 PM.

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<!--quoteo(post=206428:date=Jan 25 2009, 05:17 PM:name=Mukersman)--><div class='quotetop'>QUOTE(Mukersman @ Jan 25 2009, 05:17 PM) View Post</div><div class='quotemain'><!--quotec-->
Turd stefans. When I pulled these out of the pillow case i was just like, what... the... fuck...
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#2 utahnerf

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Posted 31 March 2011 - 03:38 PM

If I were you, I wouldn't use soft metals like brass or aluminum on the belt sander, they will damage the belts and melted flakes will attach themselves to your belts, severely decreasing the life of the belts. It would be best to use a dremel or regular sandpaper, just use low speeds on the dremel. Great job on the blaster!

Edited by utahnerf, 31 March 2011 - 03:40 PM.

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#3 shardbearer

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Posted 31 March 2011 - 10:31 PM

I like the idea of half brass, nice job here.

And wow, 70 ft? And you don't think the gears/motors will break?

Edited by shardbearer, 31 March 2011 - 10:31 PM.

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#4 andtheherois

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Posted 01 April 2011 - 05:43 PM

I like the idea of half brass, nice job here.

And wow, 70 ft? And you don't think the gears/motors will break?



You could probably offset a stronger spring by upping the voltage used to operate the gun. I'm sure we could get 80ft out of the gun with the optimal spring+voltage combination. Accuracy might be low though because of the shorter barrels.
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#5 soloz1

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Posted 01 April 2011 - 06:05 PM

I like the idea of half brass, nice job here.

And wow, 70 ft? And you don't think the gears/motors will break?



You could probably offset a stronger spring by upping the voltage used to operate the gun. I'm sure we could get 80ft out of the gun with the optimal spring+voltage combination. Accuracy might be low though because of the shorter barrels.


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