Introduction: S4 Brand New Type of Bolt Action

Picture of S4 Brand New Type of Bolt Action
hey guys! i am so glad to finally have this gun finished. this was one of the hardest builds i have faced so far, and i am really proud of myself. actually, to be more specific, the build itself wasn't hard, the word i was looking for was design. it was an immensely hard gun to design, but since you guys have the privilege to have it already posted (soon, don't worry), you don't have to struggle with it. so enough about that, lets get into the gun, shall we?

before i even thought of the concept for this gun as a whole, i was thinking about two of my best guns, both having a major flaw in them. the first, the REMPAR. this was an awesome pump action with a removable magazine i made about a year ago, and, while my S1 and S2 both beat it in strength, it was my most accurate weapon ever, and it was my fastest rof weapon ever. the major flaw? SIZE! it was massive! it was extremely long and wide, because of the nature of the pump mechanism i chose to go with. it worked amazingly well, but the size was unbearable. how did i fix that in this gun? i made it with only one side of the mechanism, sparing the necessity for yellow rods, and i also made a charging handle instead of a pump, and that also saves on length, because the charging handle can overlap onto the handle. the REMPAR also wasn't bolt action, which could have made it much stronger, but that's too late... the second, the S1. the S1 was another awesome weapon i made a couple months ago. it was a bullpup bolt action assault rifle that was built with mainly strength in mind. at the end, it was strong, but later my S2 will have been stronger. the major flaw in it? the flaw that comes with all bolt actions, especially with bullpup bolt actions, where the bolt is in the stock - it's uncomfortable and slow to load. all bolt actions (if you're aiming and not hip-firing) are slow to load, because you have to let go of the foregrip, get all the way back to the bolt, load, and get all the way back front, and that wastes too much time in a war (fractions of a second, but that's precious valuable time). the REMPAR mechanism counters that problem. also, in bullpup bolt actions (and in bullpups in general, but more on bolt actions), the bolt really goes all the way back to your shoulder, and that is really uncomfortable and time consuming. how did i solve that in this gun? i made a front bolt that also acts as a foregrip, so you never have to let go of it and you can fire very fast.

so what is this gun anyway? well, it's a bullpup bolt action assault rifle, with a removable blue rod magazine, and a very comfortable, very good, very fast REMPAR style reloading mech, that really changes the way you build the gun completely. if you really think about it, the concept behind this gun really is in between the REMPAR and S1, taking the best qualities of both and combining them into one better gun. i hope you guys enjoy this gun as much as i do, for a fast, comfortable bullpup bolt action is something that was missing from our community. some stats, shall we?

roughly 55~70 feet range
very accurate in 3/4 shots, some have a weird curve to them that i can't quite understand what's causing it
extremely high rate of fire, about 2 rounds per second (for comparison, my REMPAR was 3RPS)
very comfortable
looks good
6 layers (i think this is one of it's kind for a pin gun)
works very well

yes, this gun is the definition of the word awesome, so it is a literal stat for it. deal with it. bitch. (DISCLAIMER: <<< joke).

here is my video:

here is a video of the fixed, finalized, perfected version:

don't forget to check out the instructions here.

please RATE, COMMENT and SUBSCRIBE !!! for more awesomeness.


wde dijk (author)2014-02-16

i give it a 100000000 very good gun

Knex.X (author)2012-10-10

When are you going to post this? I'm checking every day.

Sharir1701 (author)Knex.X2012-10-19

new video ^^^ check it out.

Knex.X (author)Sharir17012012-10-21

I did :) Looks great. However, most of your guns use tons of broken pieces. Try to keep this one's mild.

Sharir1701 (author)Knex.X2012-10-21

sorry, too late for that ; ( i really don't see what the big problem with cut pieces is... building without cut pieces really is just limiting your possibilities. whatever, sorry, it has a bit of them.

Sharir1701 (author)Knex.X2012-10-18

alright, scratch that. i have had a few hours to work on it just now, and i found a solution to my biggest problem, and the rest just came magically. my problem was that the chambering wasn't smooth at all, and the only solution i could think of involved completely remaking the receiver area, which was the toughest part to make, and i really liked the way it came out. i was really lazy about it as well as i thought it would take me a lot of time (it would have), but messing around with it open i thought of something i was doubtful would work, but i tried it anyway to see if i could somehow spare myself a lot more hard work in time i don't exactly have. anyway, i have fixed that problem and i've found a neat little way that greatly reduces the massive amounts of friction on the loading plate (you'll see what i mean when it's posted, which is gonna be sooner than i thought), making it a whole lot easier to load the gun. i've also made the magazine easier to use. i've specked it up quite a bit, and i am very happy with it at the moment. what i have right now is worthy of being posted, and will be so soon (trololololol). just thought you might like to know.

Knex.X (author)Sharir17012012-10-20

Lol great work man! But will you please stop using the word '
"soon"? :0

Sharir1701 (author)Knex.X2012-10-20

lol ok. i am currently taking pics actually, so be sure it'll be posted this week.

Sharir1701 (author)Knex.X2012-10-10

trololol. i would heartily advise you to stop because i don't see any time soon when i'll have the chance to finish it. i won't update this page anyway, so that when i post it, it will be in a separate 'ible, which you will know of because you're following me. bottom line - sorry, not gonna be done anytime soon (probably).

millju (author)2012-10-20

can't wait till this is posted im definitely going to make it good job 5* !!

Sharir1701 (author)millju2012-10-20

thank you ! i've just finished taking pictures, and they are transferring to my computer as we speak. check it out later today.

didexo (author)2012-10-06


Sharir1701 (author)didexo2012-10-06

i don't ever get a chance to work on it, and i'm just plain lazy too. i need to fix a few things in it before i post it. i really don't know when i'll finish it, but i promise it will be posted sometime.

didexo (author)Sharir17012012-10-06

Ok thanks but one con (for me) is that its six layers wide. Is it possible to make it 5 layers but keep the same mech that you made?

Sharir1701 (author)didexo2012-10-06

no. that's the whole point. why is it a con? the handle and everything is 5 layers. only the upper part of the gun is 6 layers. the mag well and the handle are both 5 layers, and the mag is 3 layers. anyway, the answer is no. actually no, i'm sorry, the handle is 3 layers. it's very comfortable, and i don't have such big hands. pretty average for an adult.

didexo (author)Sharir17012012-10-07

Oh ok I thought the whole gun was 6 layers. Nevermind then its not a big deal.

Sharir1701 (author)didexo2012-10-07

you don't even feel it. none of the parts that need to be comfortable are 6 layers (or 4 layers for that matter, if you were wondering).

didexo (author)Sharir17012012-10-09

Ok that's fine I would still build it :)

millju (author)2012-10-04

this gun is amazing !

Sharir1701 (author)millju2012-10-04

thanks ! i agree.

Raz1r Knex Bull3t (author)2012-09-28

Y U NO POST?!?!?!?!


TheAwesomestDude (author)2012-09-27

your w3elcome just tryin to help

TheAwesomestDude (author)2012-09-26

you should feature this comment so its at the top and all will see the video

Knex.X (author)2012-09-22

Outstanding, really this is great!

Knex.X (author)Knex.X2012-09-22

Oh and by the way, you may have got the best gun ever in here so you better be careful with it.

Sharir1701 (author)Knex.X2012-09-22

Lol thanks ! Though I don't quite get the "be careful with it" part...

Knex.X (author)Sharir17012012-09-23

Don't post it when it's not ready even if people want it. Take your time and make it perfect.

Sharir1701 (author)2012-09-18

i'm not sure to be honest. i thought i'd do it this past weekend, but i ended up being very busy. i'm gonna keep on being busy for a little while now with school work and my job, and i'm not sure when i'll have the time and patience to finish doing what i wanted with it and post it. sorry if it's an inconvenience, but you'll have to excuse me because i have a very tight schedule for now.

Raz1r Knex Bull3t (author)2012-09-14

I'm still waiting on this being posted. : P

i can't promise when, but it'll be posted. sorry for the wait : P

Post as soon as you can. I'm eager to build.

k, i'll try. = D

AUG-5OM3 (author)2012-09-13

Wow that's all I can say It looks awesome (in the vid) it seems to work flawless, and I'd love to see this one posted (ASAP =D)

Sharir1701 (author)AUG-5OM32012-09-13

Thanks ! It is awesome, but it still has some flaws. I'm still working on it, and once I'm done with it and I'm satisfyed with the result, I'll post it. It's probably gonna be more like asaisbl (as soon as I stop being lazy), because I'm a bit lazy about working on it, but I think this weekend is gonna be an opportunity, but I often don't fulfil my promises on time lol, so don't get your hopes up too high...

AUG-5OM3 (author)Sharir17012012-09-14

Okay well I think my new parts will come today so first of all I'll rebuil;d my mauler before building this. After that I'll definately try to build it

Bwbt1 (author)2012-09-10

Give SeniorWafleman some credit for his one :D Its pretty good ! I made it

Sharir1701 (author)Bwbt12012-09-11

waffleman's AUG is ok, but it is neither perfect (as in an accurate replica) nor a good firing mechanism (imo, anyway, since the mag is fake, it's one shot and the whole ram area is just awkward). i'm trying to make a perfect replica one and i have an awesome idea to make a very nice firing mech for it, as well as the mag in the stock being the actual magazine for the gun. if i succeed it will be a lot better than his.

Sharir1701 (author)2012-09-09

if you could try to recreate some of it or explain roughly how it worked i could maybe tell you the difference. anyway, the way i did it was simple, but it came with a lot of complications on the side. it's kind of hard to explain without you being present in the process of design, but it was really hard to get this to work. i know i could have had a similar mechanism on the top or something, which might also make it stronger, but i wanted it to be internal and comfortable, while making it on the top would make it less comfortable and external. i'm actually gonna try to make a good AUG i think. i haven't seen a good one on the site, like you stated, and i think i can do it. it's also a bit of a challenge and it'll be fun to do. a simple replica to differ from all the complicated stuff i've been doing lately. also, i was planning on making a replica sometime, but i had a few things i wanted to get off the table first.

Sharir1701 (author)2012-09-09

i'm not the replica type. not when it comes to new and innovative mechanisms. i really can't begin to explain how very complicated this thing is and how very hard it was to get it actually shooting. i don't think it would be possible to make an AUG out of this, not without it being uncomfortable and a lot less efficient. anyway, i know you like to make replicas, but they're really not the same, nor as challenging as making new and innovative guns. if you want me to, i could make an AUG (separately), i'm pretty sure i know how, i've actually given it a lot of thought in the past, but this gun isn't going to be a replica, and i have also been working for a very long time now on innovation only. anyway, thanks for your support, but i will not be making this into a replica. be my guest to do so when i post it though.

Sharir1701 (author)2012-09-09

thanks !

Sharir1701 (author)2012-09-08

thanks ! i love it too it's just awesome. i mean, a 2RPS bullpup bolt action with a removable mag and it's extremely comfortable... anyway, i will post it sometime, but i'm still working on it, trying to improve upon it and make it work better. when i'm satisfied, i'll post it, but i'm not quite sure when that'll be.

dutchwarlord (author)2012-09-08

this seems to be a really great gun with alot of protential.

please post this!

Sharir1701 (author)dutchwarlord2012-09-08

thanks ! i will be posting it soon, maybe today even, but i have tons of stuff to do atm, so i'm not quite sure when i'll post. if you want, subscribe to me to know when it's posted.

Oblivitus (author)2012-09-05

I watched your video. Sick. Give that thing a huge capacity and it'll dominate. Replacing the bolt with a pump would be a desirable change in my mind, considering the high rate of fire I think a pump would be more comfortable as well as more stable for aiming (although I realize that you might not have room for one on the current version).

Sharir1701 (author)Oblivitus2012-09-05

i agree with you about pumps, but a pump would make it longer, right to the point where it's uncomfortable, and it wouldn't function all that well because one side of it will be loose and the other will have a lot of friction (i am talking about sides of the pump itself). also, it would be too far front. with the bullpup design, the handle is far front, but still comfortable. move it 1 or 2 slots froward, and it becomes uncomfortable. you could say roughly the same about the charging handle, and it's easier to get to since it's on the side. a pump would be a lot further forward, as well as on the bottom, and it would make it very straining and uncomfortable, while comfortability (especially in distances and such) is one of the key figures i was trying to implement here. in conclusion, it would be less comfortable as well as probably slower, since you would have to strain yourself to pump, or even take the gun out of your shoulder. if you think about it, a bullpup pump action in knex isn't a very good idea at all because of the distances required for each part (you know, unless you make a shorter pin, but that's undesirable). anyway, thanks ! yeah, i might make a bigger magazine. i'm gonna be posting ASAP, because i desperately need the parts to work on the concept we were talking about a couple weeks ago. potatocoffee asked if we could collab and i said sure, so i don't want to keep him waiting, and i don't have much spare parts. i have 2 S2s built, a ruin of my S3, which i will be taking apart soon, a few magazine designs i'm working on, this gun (S4), and my version of kinetic's and innovanna's kinno-1, which i won't be taking apart, since it is a part of the new gun's concept.

Oblivitus (author)Sharir17012012-09-05

Nice. And yes, I knew space would be an issue with the pump, just not to what degree, you may be right that it's nearly impossible. I'm currently building your S3. I'd like to add a pump but have also run into space issues and am looking for a way to resolve it if possible. Good luck on your collab.

Sharir1701 (author)Oblivitus2012-09-05

yeah, it probably is impossible. glad you finally got round to it ! i don't think it's that big a deal on a gun like the 3252, since you pump once (or more, but all in one time) every few shots, and so you basically pump when you're not in ready mode, so it doesn't matter if you take the gun out of your shoulder... btw, i was thinking long and hard (that's what she said) about adding a pump to my S3, and i couldn't come up with a solution. everything i thought of had to do with "if the pin was a cog...". what do you have in mind? also, wouldn't the pump kind of interfere with the turret? and thanks, good luck to you too.

Oblivitus (author)Sharir17012012-09-06

My thought right now is that I could flip the gun upside down so that the turret is on the top and then the pump will have enough space. I will make cogs on the outside of the gun at both ends of the rod that the crank is currently on to be rotated by the pump. The next problem I need to solve is how to make the pump rotate the cogs in only one direction (when the pump moves back). The first thing I am going to do though is to build your original version from the instructable and try out different elastic setups to work on the energy/range loss issue.

Sharir1701 (author)Oblivitus2012-09-06

ah i see what you're saying. that comes with a fair bit of range loss, adding 2 cogs on the spool rod that suffer from friction from the gun's outer wall (both because of weight and because of friction). it might work though. i think kinetic's concept on his (i think) K2 could be sufficient. the way kinetic had it, it would need to be pushed up (the pump) for the teeth to be in the sequence, but i think he overlooked a much better way of doing it. anyway, on your's you could have them in the sequence by default so that they're pulling on the cogs when you pull back the pump, but when you push the pump forward, they move out of the way and back up again, kind of like a linear ratchet, or even like the alternating trigger design. you know what? you should make a lot of alternating trigger arms in a sequence. that would work! also, it would be very small, since the latest design is very small. you wouldn't need all the 3 way connectors, just rubber bands too. i hope you understand what i mean... anyway, good luck, as i believe i have said before. it's so weird i have to repeat that at the end of every comment, or else i feel impolite. it's like you can't part from someone or talk with someone with out saying some sort of "fare well" at the end. lol

About This Instructable




Bio: I used to build K'nex guns. I'd like to think I've grown to be quite good at it, however, I've lost ... More »
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