Introduction: K'nex M4A1 Carbine

Picture of K'nex M4A1 Carbine

The K'nex M4A1 is easy to built and some of the pieces are bent a bit and it won't ever break. Just get a picture of a M4A1 and try to built it out (thats what i did) Im off a few inches long from the actual M4A1 Carbine.

You can clip in the mag and out but it won't fall out, the aiming is like the one is Call Of Duty 4.

By: Charles . P

Step 1: M4A1 Mag

Picture of M4A1 Mag

The mechanism of the mag holder is very simple and it's not that hard to make because they snap together.

Step 2: M4A1 Parts

Picture of M4A1 Parts

Pieces are removable and you can put attachments to it like a grenade launcher, red dot, or a Front handle.

Step 3: Iron Sight

Picture of Iron Sight

This Iron Sight Is From Call Of Duty 4 and on a real M4 as well


Fartonia (author)2010-10-08

These are guns I've made, but have no time to post them.

It's the M4A1, SCAR-H, and M4 SOPMOD

*There's no SCAR-H video

thedoomslayer59 (author)Fartonia2017-09-20


bfhben (author)Fartonia2011-08-20

its gunthix4evers guns u have no common scence (cant spell)

EXZOTlC (author)bfhben2011-09-06

this is him

killersir751 (author)Fartonia2011-01-08

i knew i recognised that M4 in the top left from somewhere, are you Guthix4Ever on youtube (don't know if i got the name right, sorry)?

knex inventor (author)Fartonia2010-10-30

Dude ive seen all your video clips on utube there awesome i even managed to build the m4 sop mod and the ak47 just didnt have time to build the dessert eagle. Your stuff is so cool even my friend said it was good enough to sell. lol!

knexgunfreak781 (author)2013-05-09

does the gun shoot

ChuckNorrisGuy (author)2012-07-10

i'm gonna own y'all yeah baby but i cant download PDF WTF??(where's the food) XD

Fartonia (author)2011-08-28

This is my latest gun so far....

james brindley101 (author)2011-04-12

hi can you send me the instuction's of how to make the m4 a1

Miles Tails Prower (author)2009-06-02

Lol, I am gonna own you now.

Lol, I am gonna own you even more!

now that looks fun to build


does it shoot?

Reiben (author)2008-11-16


knexfan9182 (author)Reiben2008-12-01

not bad heres my gun that shoots this one is not modeled after anything

mahmel (author)knexfan91822010-10-08

Check out mine M4. It looks like it + it shoots, I mean, why building guns which don't shoot? :$

bounty1012 (author)knexfan91822009-01-01

cool. kinda looks like an mp5 or an mp44.

knexfan9182 (author)bounty10122009-01-01

mp44 way off kid but I guess it kinda looked like that in the first versions

bounty1012 (author)knexfan91822009-01-01

Lol... It kinda does, at least I think it does...

knexfan9182 (author)bounty10122009-02-12


bighead5454 (author)knexfan91822010-05-13

the middle bottom gun looks like a Skorpion auto-pistol

bounty1012 (author)knexfan91822009-02-12

I would make it if I had enough pieces sadly I do not :[

Fred the evil puppet (author)2010-08-22

does this fire?

knex inventor (author)2010-09-21

i'v built this and its good for playing with,plus i tweeked it a bit

lemonpickle (author)2010-07-20

ok if seen better 3*

nye99 (author)2010-06-16

i will build it then i will give you a score out of ten believe me i know a lot about guns iv got 5 rifles and a shotgun

Jerryjr (author)2010-06-04

=P sweet

tysanio (author)2010-01-26

Good Good i like it ^^

knexmyster (author)2009-03-25

that gun (m4a1) kind'ov looks like the one that gutix4ever made on youtube

yeah its gutix4ever

yeah i know he might not like this but i took his deagle .. built it and made a removeable mag with the button for realeasing it if you want to see it ask

knexmyster (author)knexmyster2009-03-25

wait............. that is it!

knexdude152 (author)knexmyster2009-05-16

yeah i think he is gutix4ever i love his guns soooooo cool

bhuty (author)2009-12-04

if you could make that shoot and post instructions, i would subscribe 50 times ppppppppppppllllllllllllllllllllllleeeeeeeeeeeeaaaaaaaaaaaaasssssssss

Buzzwad (author)2009-10-29

I'm trying to build this, and I'd like to ask anyone who has built this if they could provide detailed instructions on the barrel. I can't quite understand the pics

Fartonia (author)2009-10-03

New M4A1 VERSION on Youtube made by me!!! Channel: GUTHIX4EVER Watch it... You might like it? but is still doesn't shoot :'(

ashchetm (author)2009-09-19

ya know just pointing out.... people don't care if you make a model of a gun if it does'nt fire....its more of a waste of space on instructable's server...

Storm360 (author)2009-08-19

The barrel is too flimsy!!!!!!!!!!!!

deadeye241 (author)2009-08-04

how did you make the grip on the barrell

knex shooter (author)2009-07-29

dosnt shoot omg

stoshy (author)2009-07-26

the part where u shot how did you build that

stoshy (author)2009-07-26

nice gun im makeing it know

jezza723 (author)2009-07-16

nice gun i made it from the pictures!

M4A1DrumRoll (author)2009-07-14

dude i love that gun i have to know how you did it. really how did you make it!

Arbitror (author)2009-03-17

My all time favorite gun!

RMConstruction (author)Arbitror2009-06-11

Ruined by knex? in this instance, (not beng rude to maker) perhaps, in miles's instance, HELL NO!

RMConstruction (author)2009-06-11

Looks a lil short... not the barell, the main mech.

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