Introduction: M4 Carbine

Picture of M4 Carbine

I built nightfox939's M4 and it turned out pretty good. I think I know why he didn't post the instructions, because it would be a big pain in the a**.....But if you study the pictures like i did you should able to build this gun. Also if it may help i used the trigger system off of the instructable called knex gun with new trigger & sear.


chopstx (author)2010-01-06

Glad it worked!

Storm950 (author)2008-06-16

This is probably the best gun on the whole of Instrucatbles, I know it isn't yours. It has a decent sear system (so I hear) a good range, an awesome bottom loading mag, and it could not look any more like an M4.

Reiben (author)Storm9502008-06-22

yes it would... the stock is m16 m4 stock dosent look like that, its got a lever that makes the stock for ur arm

iKill (author)Reiben2008-08-01

your really dumb theres 2 types of stocks, and both are availible for the m4

full stock:
crane stock:

Reiben (author)iKill2008-08-02

thats y the m16a5 only has that sock and so their foor this looks like an m16, add a forgrip and then it will be a m4

iKill (author)Reiben2008-08-02

no your wrong... firstly this gun already has a forefrip. secondly the m16 and the m4 are the same gun, the m16 just has a longer barrel, and both guns have a crane stocks or a full stock. its all about personal preference.

knex shooter (author)iKill2009-02-19

Your right what your saying iKill but the M16 and M4 are the same with the longer barrel bla bla bla BUT the M16 AND M4 HAVE DIFFERENT FIRING RATE !!!

Knex Guru (author)Reiben2008-08-18

They're the same gun, except M4's have shorter barrles. My AK-74 has an 'M4' stock on it, want to correct me some more?

!revenge! (author)2008-08-03

this is so awesome i made the moretti sniper but this looks probably even better

bakenbitz (author)2008-06-28

My m4. If you want this to look even better, you should make it with the metallic colors.

bruce911 (author)2008-06-13

Here are some pictures.

knexfan9182 (author)bruce9112008-06-26


Vynash (author)bruce9112008-06-20

oooooooooooo please post it for me

James_Lawrence (author)bruce9112008-06-14

is the clip removable? it doesnt look like it is in the pic

Whaleman (author)bruce9112008-06-14

Might want to see if you can move the charging handle forward, but other than that it is pretty good.

I_am_Canadian (author)bruce9112008-06-14

That looks sweet!

11knexman11 (author)bruce9112008-06-13

awesome you gonna make instructable?

bruce911 (author)11knexman112008-06-13


11knexman11 (author)bruce9112008-06-13

cool :)

PineapplebobTheGreat (author)2008-06-10

This was already posted...

yes but not step by step if I'm wrong tell me

apples!!!!! (author)FooL1113942008-06-11

this is not step by step, its a slideshow, just like the other one

FooL111394 (author)apples!!!!!2008-06-16

oops looking at the wrong one sorry

FooL111394 (author)FooL1113942008-06-12

SOmeone should post this I neeeeeeeeeeeedddddddddddddddddddddddddd this weapon for arsonal please please

yourmom123 (author)2008-06-14

dude r u stupid this exact same gun was posted by nightfox939 and you just copied it and said your going to make the instructable. i hope nightfox gets the instructions on before you!!

bannana inventor (author)2008-06-14

This gun is so detailed it's not even funny. EXCELENT WORK!!!

sak-j (author)2008-06-14

@ BRUCE 911 PLEASE make an instructable. I want this gun so badly

bruce911 (author)2008-06-12

I also built this gun but the other day I sat down and begain thinking hot to get the mag working. After about eight hours of modding and tweaking and sore finger and knees(I sit on my legs) I finnaly fixed it. The mag now works the trigger works although I just finished now I have not yet seen if the lbue rods will leave the gun. =/ so that is the next test after I strengthen everything. I will be back later today with a pic and some stats. ( I might be posting y modified version if you want.

11knexman11 (author)bruce9112008-06-12

so does that mean that your making a instructable for this?????? plz say yes cause im not a good builder by pictures. and now every time i look at it it mocks me lol plz make a instructable(plz).

bruce911 (author)11knexman112008-06-12

I might be. But it will probably take awhile. I just tried the putting pressure on the sear system(trigger) and it didn't hold even two rubberbands so I have to redesign the trgger then I will post a pic. I might be posting instruction and if I do there will be alot of people who will complain to me about there gun not working because this gun(my version) is extremely complicated and everything needs to be precise, but who knoes, I might fix that problem. I am now on my 11th hour of modding.

11knexman11 (author)bruce9112008-06-12

truely i just want to know how to buld the frame at least cause if you post the frame modders will swarm to it and mod the heck out of it to make it fire but still look like a m4. so ya all we need to know is how to build frame but if you can post the firing system you used:) ty if you do make a instructable (wow long comment lol)

bruce911 (author)11knexman112008-06-12

I finnaly got it working, the trigger system is changed and perfected, no problem with the tension of bands although the mechanism, the cocking mecanism may fail under high tension. Right now it is a block trigger but I am almost done the true trigger. The whole interior barrel had to be redesigned and I am currently redesigning the front half. Without the front it shoots close to 40ft but with the current front maybe only 10. (That is why I have to mod it. Comeback and look for a picture later on tonight, maybe in about an hour.

bruce911 (author)bruce9112008-06-13

Finnaly, after 13hours of on and off modding it is done. The features are: -True trigger -Same cocking mechanism as a real M4 -Pretty strong -Curved mag for blue rods -Iron sights -Internal barrel with cover (Green connector thing) -Fake barrel on front -Pretty accurate _EXTREMELY REALISTIC

I_am_Canadian (author)2008-06-12

Make good instructions, And ill make it

sak-j (author)2008-06-10

Will you please post it?!?!?!?!?!?!?!?!?!?! seriously post it

Vynash (author)2008-06-10

post this since the other dude didn't.

madman10 (author)2008-06-10

if you read what i wrote u would see that i already knew that

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