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New Rifle In Its Infancy...

Magazine fed spring powered rifle

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#1 boltsniper

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Posted 20 December 2004 - 09:21 PM

Hello everybody. I hope you all have been doing well. Since I graduated college I haven`t done much with regards to nerf hommades (aside from the pistol). I got to thinking the other day while rumaging through all my extra AR15 parts that it would be cool and easy to make a Nerf rifle using some of the AR parts. One part that stuck out was the action spring. The buffer spring the AR uses is high displacement and high spring constant...perfect for a cocking nerf weapon. I also had that magazine laying around that I never put to use. I decided to start work on a spring powered cocker that will be fed by magazine. This will essentially be another bolt action rifle...but different in every aspect. So far I haven`t done much fabrication except for the barrel (which is the easiest part) and preliminary cutting on the receiver. I have done a lot of drawings and calculations for the action. Here are some photos of the parts arranged in their respective positions:

Posted Image
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The entire reciever is likely to be two section of 1/1/2" PVC. Similar to the CO2 rifle. It will use the same shells as the CO2 rifle. I am thinking I may have to modify them however by putting another ring around the shell for better seating in the magazine and better cycling. If this is required it will not affect there use in the CO2 rifle.

Here is a shot of it with my M4 just for comparison......
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I hope to do some fabricating over the Xmas break. During the scmester I don`t get much free time. I`ll keep you guys informed.

Edited by boltsniper, 20 December 2004 - 09:23 PM.

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#2 Renegade

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Posted 20 December 2004 - 09:35 PM

That looks awesome! Great job Boltsniper!
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#3 ompa

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Posted 20 December 2004 - 09:38 PM

I am left in awe by the magnitude of your genius. I can only hope to one day, preferably when I'm in college, reach the level that you are at.

Then again, your knowledge of firearms must be of great assistance. Anyways, if you make a system similar to your CO2 rifle, could you explain how the whole shell ejection thing works? I'm extremely interested in it.

~ompa
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#4 Ironman

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Posted 20 December 2004 - 09:40 PM

How is the clip attacted to the action? Also how did you make the breech and action.
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#5 boltsniper

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Posted 20 December 2004 - 09:55 PM

I would hold all the praise until the rifle is done. All it is now is a collection of parts. It is nothing more than you see int he first picture. I have not made the action yet. I have cut a few bolts but none that I will use in this gun. The bolt I have designed will be similar to an actuall firearm bolt with an extractor that engaged the rim of the shell. A fixed ejector will kick the shell out. The plunger will be retracted along with the bolt but will engage the trigger sear and remain cocked as the bolt is cycled forward.

In the picture the magazine is just sitting against the receiver. I plan on using 1/1/2" elbows cut and modified to create a magwell. I plan on doculmenting the design and fabrication of this rifle much better than the CO2 rifle.
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#6 AirApache

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Posted 21 December 2004 - 01:49 AM

Holy shit. Where the hell were you before? Every aspect of you totally rocks. (Check out his homepage). Are you really in aerospace engineering? (Were you in military? dunno)

Anyway, about the gun. Hopefully you can finish quickly so that you can show us how it works..because I'm confused by the picture. Even though the parts look damn sweet.
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#7 okto

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Posted 21 December 2004 - 03:03 AM

How much does an M4, particularly your tricked out M4, cost?
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#8 boltsniper

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Posted 21 December 2004 - 11:04 AM

How much does an M4, particularly your tricked out M4, cost?


I built mine from the ground up with Bushmaster parts rather than purchasing a complete weapon. If you do this you can save on the dealer and federal taxes on completed weapons. A plain M4 style AR will run right around $1000 new, depending on what yep you get and where. If you build the same gun will pay around $700. You can spend a fortune on accesories. I added a railed foreend ($200), Stainless bolt carrier ($200), Titanium Nitride coated bolt ($80), Match Trigger ($100), Actual Telestock ($60), 4x CQB scope ($325), Laser/Light ($300), BUIS ($90), New Pistol Grip, ($35), Flash Hider ($20), and plently of other little things. I`ve probably spent about $3000 on the rifle in the picture
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#9 Groove

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Posted 21 December 2004 - 12:48 PM

You can also saves lots of money buying from private collectors, instead of running through the red tape of buying one and acquiring the necessary liscences to own one, and like boltsniper said - buying parts is probably the most fun about it all. We've spent about $800 upgrading ours so far, but not to the degree of yours, boltsniper. We got a short stainless steel barrel, flash supressor, and new rubberized grips just to name a few, and we're looking at scopes right now. Of course, ours came sort of pre-loaded (as we bought from www.rockriverarms.com) but the sky's the limit as far as upgrades go on these things...
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#10 Pineapple

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Posted 21 December 2004 - 05:50 PM

I would hold all the praise until the rifle is done.  All it is now is a collection of parts.  It is nothing more than you see int he first picture. 

Yeah, but everything you've done, from that awe-inspiring CO2 powered rifle, to your detail work on your R/C cars, to your Bushmaster AR, are always done well and with so much attention to the particulars that make them eye-catchers, as well as functionally great.

I couldn't help but notice that the parts layout, even if you're using some spare AR parts, resembled a Barrett "Light Fifty" (forgot the military model designation), .50 cal semi auto loser's rifle. Back when it first came out, it was a beast. Still is.

Good luck with the project, looks like it'll be a handful!

-Piney-
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#11 boltsniper

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Posted 21 December 2004 - 07:25 PM

You can also saves lots of money buying from private collectors, instead of running through the red tape of buying one and acquiring the necessary liscences to own one, and like boltsniper said - buying parts is probably the most fun about it all. We've spent about $800 upgrading ours so far, but not to the degree of yours, boltsniper. We got a short stainless steel barrel, flash supressor, and new rubberized grips just to name a few, and we're looking at scopes right now. Of course, ours came sort of pre-loaded (as we bought from www.rockriverarms.com) but the sky's the limit as far as upgrades go on these things...

Rock River makes good stuff at reasonable prices. My 20" rifle has a postban RRA upper on Mega lower. I built that rifle for $500. Nothing special about it...just plain jane A2.

Yeah, but everything you've done, from that awe-inspiring CO2 powered rifle, to your detail work on your R/C cars, to your Bushmaster AR, are always done well and with so much attention to the particulars that make them eye-catchers, as well as functionally great.

I couldn't help but notice that the parts layout, even if you're using some spare AR parts, resembled a Barrett "Light Fifty" (forgot the military model designation), .50 cal semi auto loser's rifle. Back when it first came out, it was a beast. Still is.


Thanks, Pineapple. You flatter me. There is a resemblance to an M82A1. I didn`t plan for that...it just kinda came out that way. Coincidence that the bore is .50 caliber and the shells are close to being as long as 50cal. With the AR parts and the big bore it most closely resembles a Cobb FA50(T) Carbine.


Cobb FA50(T) Carbine
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#12 Ironman

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Posted 22 December 2004 - 06:27 PM

How was the gravity fed clip held in on your bold rifle?
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#13 boltsniper

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Posted 23 December 2004 - 01:45 AM

How was the gravity fed clip held in on your bold rifle?

Rubber bands. Which worked fine because to reload you did not have to remove the mag. You just drop shells in the top. And then when you wanted to remove the mag....you could. For this rifle there will have to be a mag well with some sort of catch. I haven`t thought this far into it yet....
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#14 okto

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Posted 23 December 2004 - 02:09 AM

For the mag well, you could use halved PVC a step up in size from that used for the mag, and more wood for the sides. As for the catch, since you probably won't be needing to make super-quick mag changes, you could use a couple of the lock-down-flap type of latch you see on toolboxes.

Edit: Draw latches or, in the case of the wire loop ones on toolboxes, loop catches (creative name, eh?). Good ol' Google.
http://www.spdhardware.com/lc1.htm

Edited by okto, 23 December 2004 - 02:12 AM.

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#15 boltsniper

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Posted 23 December 2004 - 02:16 AM

I plan on using 1/1/2" elbows cut and modified to create a magwell...

My thoughts exactly
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#16 Spectre2689

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Posted 23 December 2004 - 01:05 PM

How about a magnetic catch? Just a thought.

[EDIT] What I mean is maybe have two magnetic strips imbedded in the wood in the inside of the magwell, and two magnetic strips imbedded in the wood on the outside of the mag. Then you could easily slide it out, and it would stay in place otherwise.

Edited by Spectre2689, 23 December 2004 - 02:53 PM.

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#17 Ironman

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Posted 23 December 2004 - 02:42 PM

That might work if you could get them cut to small pieces. then the clip could be perminently held on.
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#18 Dark1337

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Posted 23 December 2004 - 11:59 PM

You could probably make it out of wood, as far as the gun looks, it looks cool, but if your trying to make it realistic the clip looks a little wide...
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#19 Ironman

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Posted 24 December 2004 - 10:32 AM

It is wide because of the shells he uses, that all.
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#20 Tarius

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Posted 25 December 2004 - 02:29 PM

I bought a book, and that gun looks like the one one the cover, of the book. The book is how to construct a 50. cal rifle, home made of course, and for a 15 yr old kid, I like that nerf gun.
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#21 Ironman

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Posted 25 December 2004 - 09:01 PM

Don't you like nerf guns?
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#22 Tarius

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Posted 26 December 2004 - 05:53 PM

I do, I thought it would help me make a nerf loser rifle.

Edit: the magazine- couldn't you use a mome made version of the Light Storm LS2(none nerf nerf gun), i mean you could use styrine-shetes of plastic, I'm not sure about it's price or durability though. You can get it at hobby stores, or art store should have em. Otherwise try plastruct.com i believe. Cut w knife or scissors, glue w model glue or super glue.

Edited by Tarius, 26 December 2004 - 06:19 PM.

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#23 Jlego

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Posted 31 December 2004 - 10:19 AM

Nice! Glad you came back, it's been quite awhile. You'll be pleased to know I'm applying to VPI, but that's not what this is about, now is it?
I love the design of this gun, I was amazed at the clip and couldn't wait to see what you put it into.
Spectre - nice idea! I thought of something like that. But if anyone wants magnets strong enough, drop me a PM, i take apart all my school's dead hard drives and those magnets are beastly strong. I'd say a pair on the gun, and apair on the clip. If they match up and lay flat, the only thing i'd worry about would be getting the clip off.
Anyways, I am most intriged by the sping-bolt idea.
Keep up the sweet designs.
-Jlego
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#24 THIRST

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Posted 31 December 2004 - 11:21 AM

Neodynium magnets would work...Friggin powerful...But your gonna need some leverege to get them apart :( . If you have the mag on a hinge, then the leverege is already there...The mag wont come apart easily unless you want it too...I dont have much to add since I never really got too far into building homemades, but good luck.

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#25 Jlego

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Posted 31 December 2004 - 12:21 PM

hmmm, after some thought, i realized that (at least I think that) a combination of ideas might work. If you used a catch which it just hooked into, such as what i think your right angle coupler idea was it might slip out. if you use magnets, it might be to hard to pull off. However, if you put the magnets at the end of the catch tracks (the loaded position), depending on how much surface area of metal touches the magnets, it would hold the clip in the locked position, but then it wouldnt be difficult to unclip. Hmmm. hard to explain. I'll make up a paint image when i get the chance.
-jlego
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