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Yalpam (yet Another Longshot Pump Action Mod)


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#1 taerKitty

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Posted 31 May 2009 - 09:30 PM

I'll skip the AR and safety removal - there are many posts better than I can author abounding in the forum.

This post focuses on the'interesting' mods - ones I've not seen before (but with umpteen thousand posts, I'd not be surprised if I was wrong.)

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The first one is simple to the point of stupid. We've all seen mention of using lengths of PVC to keep the stock from collapsing.

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In addition to that, cut the last part of the slot off, and the stock is now removable. Work the latch to lock it or unlock it. No big deal, but I packed a small Philips-head screwdriver, a roll of E-tape, a tube of super-glue, and some zip-ties in there (wrapped in a paper towel so it doesn't rattle.) Not that I expect to use it during a battle, but it made use of some dead space.

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The second one is more interesting. I like the shotgun mods, but the exposed parts got me wondering if there were a better way.

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Here's the exposed part of it. A bit of the bolt cover plate plastic-welded to half the frame, filled in with Bondo, covers the gap left by cutting away the bipod assembly. A pair of 1/2" x 1/8" aluminum rails form the guides the front gun handle slides back and forth on.

The two 'tracks' are pieces of clothes-hanger wire, bent double to fasten the aluminum rails to the receiver halves. I remember opting for them over pop rivets, but can't remember why. Aesthetics, maybe? Unsure. There's some epoxy between the rails and receiver halves too. Before epoxying, rough up the rails with a file or coarse sandpaper.

(Edit) Oh, I remember why now - I wanted the inside of the fore-end to have a little more stiffness so there is another set of aluminum rails in there, offset so they don't interfere with the front handle's slide path. I used the clothes hanger wire because I didn't have pop rivets long enough and wanted to get the project done.

So, each half of the receiver's front end is actually sandwiched between two aluminum rails. If I do this again, I'll use pop rivets.

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Here's the internals. The bold sled has two 1/8" holes drilled near the front and two bicycle spokes (295mm, I think - they're $1 each from my local bike store) form the inner cocking rails.

A bit of the front collar had to be nibbled away to make room for the mounting point, which is a piece of bent coat hanger wire fed through the front gun handle where the trigger catch normally emerges. A bolt-and-nut is there to take up the slack. The front gun handle is filled with expanding foam in part to secure the coat hanger wire and keep it from rattling.

One thing to consider before trying this yourself: I was only using the stock spring. You may have to use something sturdier if you augment the LS spring (Nightfinder, BBB, AR15, etc.)

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The last one is more a way to close down the hole left by cutting away the handle than an actual mod. I found the handle got in the way more than it was worth so off it went. The gap bugged me so I looked to fill it with something at least minimally useful. I chopped down the ladder sight from the Recon and mounted it here. The ladder sight itself is a single unit, it's not coming apart again (without a lot of force.) It's only glued to the right half of the receiver.

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Here's the completed blaster. I also tried to Angel the breech, and ... let's just my modding skills need work. And I need a new bolt. >_<

Range: Stock LS-with-AR-removed 40-50 feet before failing my brass smithing roll. 0' after.

Edited by taerKitty, 31 May 2009 - 11:47 PM.

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#2 TantumBull

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Posted 31 May 2009 - 09:55 PM

I really, really like the new priming mech. It looks really awesome and functional. One problem: Coat hangers will bow out after prolonged exposure to the spring. You should replace those with something else asap.
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#3 taerKitty

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Posted 31 May 2009 - 10:00 PM

Coat hangers will bow out after prolonged exposure to the spring. You should replace those with something else asap.


Quite true. Actually, this blaster is in my parts bin (and my parts bin in at my friend's house) after the bolt went bust. I have a new LS and am thinking of doing this again, but this time I'll use a piece of the aluminum rail shoved into the front gun handle first.

As for the push/pull wires, they're definitely not coat hanger wire. :D Thanks for the warning/reminder.
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#4 TantumBull

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Posted 31 May 2009 - 10:04 PM

Coat hangers will bow out after prolonged exposure to the spring. You should replace those with something else asap.


Quite true. Actually, this blaster is in my parts bin (and my parts bin in at my friend's house) after the bolt went bust. I have a new LS and am thinking of doing this again, but this time I'll use a piece of the aluminum rail shoved into the front gun handle first.

As for the push/pull wires, they're definitely not coat hanger wire. :D Thanks for the warning/reminder.


I reread it, and I now see that you weren't referring to that wire when you were talking about clothes hanger wire. Sorry 'bout that.
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#5 just call me K

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Posted 31 May 2009 - 10:51 PM

Oh man. This gun looks awesome. I always liked LS shotgun primers, but this is the first I've seen that uses the front gun handle. Awesome idea. And I love the paint job. Orange is my favorite color :D
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#6 Hi Yah

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Posted 01 June 2009 - 06:42 AM

This kinda looks like the raider which is coming out soon. It looks really good; although, I'm pretty sure someone has already done this.
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#7 Mr BadWrench

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Posted 01 June 2009 - 07:09 AM

Great work, nice colors. A+

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#8 taerKitty

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Posted 01 June 2009 - 08:15 AM

I reread it, and I now see that you weren't referring to that wire when you were talking about clothes hanger wire. Sorry 'bout that.


No big thing, and a valid point - the coat hanger wire on the front gun handle is the weakest link. Of course, the more I type about it, the more I want to do this mod again.

Oh man. This gun looks awesome. I always liked LS shotgun primers, but this is the first I've seen that uses the front gun handle. Awesome idea. And I love the paint job. Orange is my favorite color :)


Much thanks for the compliments. Yeah, I never saw an internal one before, but wouldn't put it past the luminaries of this crowd. Orange is probably the local cops' favourite colour, too. ;)

This kinda looks like the raider which is coming out soon. It looks really good; although, I'm pretty sure someone has already done this.


As I said, just because I didn't see it doesn't mean it's not been done. A friend pointed me at this site and I wanted to contribute to the pool of knowledge and because it sounded like fun. I did search for it first, but had no luck. My curiosity is now raised, though. I'll go look again, because if it's something that the master modders did, it'll be interesting to see how my attempt compares and how to improve.

As for the Raider, I'll buy it, if only for the 35-shot magazine! You're quite right, the Raider has the exact same motion (and it's probably got something other than bondo and hanger wire holding it together.)

Great work, nice colors. A+


Much thanks. A friend commented that it looked like something a Clone Trooper would carry. I'm not sure if that's a good thing... ;)

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Thanks for the warm welcome. No, I don't intend to reply to every post hereafter. Originally, I wanted to address the comment that it was done before and ask the community at large for a link because I couldn't find it with the site search engine, or with Google. I just didn't want to slight the others who were kind enough to leave comments.
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#9 Salmon

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Posted 01 June 2009 - 10:41 AM

For a first mod (I assume), this is absolutely incredible work. Heck, even if it isn't your first mod, I'm amazed. Also, if it was your bolt that broke, I recommend singling it using Ice's mod, if only temporarily, so you can use it. You may even find (as I did) that you like that format even better than the Longshot's original one.
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#10 Basilisk

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Posted 01 June 2009 - 11:22 AM

The new priming handle is very innovative and it looks very clean. Props for the pj and internal mods.
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#11 TrouserSnake

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Posted 01 June 2009 - 06:29 PM

Very, very nice longshot you've got there. I love the new priming handle much more than the shotgun grips people have made. Very nice paint job as well.
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#12 hockeyfights118

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Posted 01 June 2009 - 07:53 PM

Nice mod
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#13 PointBlank

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Posted 01 June 2009 - 08:20 PM

*slaps self in face* I can not believe nobody has thought of this before. Truly excellent work.
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#14 fallinouttadabox

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Posted 01 June 2009 - 09:27 PM

There is one other internal shotgun grip mod. But this is still done very well, I especially like the use of the front gun handle.
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#15 taerKitty

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Posted 02 June 2009 - 02:09 AM

One more reply, this time to thank fallin for finding the first mention of the internal pump action. I could have sworn I clicked through all of FA's list of LS mods w/o finding that.

There is one other internal shotgun grip mod. But this is still done very well, I especially like the use of the front gun handle.

Props to Telekinetic for the original idea, and to watkins for first execution. I know I read Piney's Modifying A Longshot? but must have stopped before TK's post. And thanks to fallin for finding this so I can give credit where it's due.

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Seeing as I am posting, I ask your indulgence as I reply to the others. I've been on other forums where it's considered well-mannered to do so, and give that this is neither a bump nor a necro, I hope I'm not breaking any rules by doing so here. Given some of the other threads, I'm sure NICers will tell me if I'm wrong.

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*slaps self in face* I can not believe nobody has thought of this before. Truly excellent work.

You mean like all the times I did when I first found this site? There's a lot of 'inobvious elegance' here, where people come up with stuff that makes perfect sense, but I would have never thought of. Case in point, watkins' implementation of the internal pump action, using the bipod mount as the guide rails. Makes total sense, but I didn't think of it. I just saw the mount as garbage and cut it off.

That's what I love about the Haven - there's so much creativity. Also, some people have the machine shop to back it up, too. At that point, I'm not sure which I'm more jealous of, their creativity, or their resources. ;)

Nice mod

Much thanks! I was a little nervous posting here. Actually, I made the mod right after my friend pointed me at the Haven, then shelved it while waiting for posting permissions. Unfortunately, I tend to flit from hobby to hobby, hence the delay. Anyhow, was nervous posting here, but I seem to have avoided many of the newbie faux pas, so here's hoping I don't jinx myself saying this.

Very, very nice longshot you've got there. I love the new priming handle much more than the shotgun grips people have made. Very nice paint job as well.

Truth be told, I didn't want to buy 4" diameter PVC. ;) (So, instead I bought a yard of aluminum rail... go figure.) Also, I was wondering if my hand would slip on the shotgun style foregrip. I'm not a Nerf warrior, so this is all theoretical. But damn, it's fun!

The new priming handle is very innovative and it looks very clean. Props for the pj and internal mods.

Looks like it's not as innovative as I once thought (but I'm glad the people who originally thought it up have a chance to get their recognition.) I sweated the painting, too. Some of the mods posted here seemed pretty functional, but people (rightly) pointed out that a good paint job would bring out the best.

For a first mod (I assume), this is absolutely incredible work. Heck, even if it isn't your first mod, I'm amazed. Also, if it was your bolt that broke, I recommend singling it using Ice's mod, if only temporarily, so you can use it. You may even find (as I did) that you like that format even better than the Longshot's original one.

Yes, first 'real' mod, first paint job. My first mod was gluing three LS/Recon clips in a Y - not worthy of being called a mod. I saw the singled LS (if we're talking about the same thing), but the LS is a gem in my eyes for the clip. As I said above, I tend to be a bit manic in my hobbies - when the bolt broke, I was already somewhat at the end of my interest in Nerf modding that time around, so it was a ... handy excuse to move on. Now, a fellow NICer was kind enough to offer me a bolt for sale, so I'll have that one back in working order soon-ish.

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In the meanwhile, as you can tell from my wordy posts, Nerf modding has become yet again my hobby of the month. I realize it's gauche to talk about "this is what I'm gonna do" and such, so instead of that, I'll just thank everyone for re-igniting my interest in this mod. I'll take all your suggestions and warnings to heart as I do it again. Hope to have it done in a week or two and post a step-by-step.

Thanks, NIC!
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