Introduction: Knex M4

Picture of Knex M4

this is so far my best knex assult rifle.
The gun has a curved removable mag,or a no-jam straight mag,and true trigger.

This guns can reach about 50ft MAX.
I will not say it never jams because it does,but not very often ,like 1 every 3 clips.
the trigger may fail every like 100 shots fired,or by too much rubberbands.Enjoy!

Step 1: Barrel

Picture of Barrel

ok this is the barrel it is very plain and simple.
It may seem a tad complex but you should be fine.

Step 2: Handle

Picture of Handle

This is the guns handle the easiest steb aside from the trigger

Step 3: Inner and Outer Body

Picture of Inner and Outer Body

probably the hardest step of the gun maybe because the stocks really hard to...

Step 4: Top Rail

Picture of Top Rail

not hard at not going to post much pics because so easy just look at intro pic k?

Step 5: Stock

Picture of Stock

this is the second hardest part

Step 6: Mags

Picture of Mags

two kinds of mags the straigh one jams less the cured jams more often.

Step 7: Ramrod

Picture of Ramrod

self explanitory

Step 8: Trigger

Picture of Trigger

very easy

Step 9: Putting Together Back Half

Picture of Putting Together Back Half

stock trigger and handle

Step 10: Front Half of Attaching

Picture of Front Half of Attaching

attaching front barrel and finishing second rail system

Step 11: Yayz Done! (kind Of)

Picture of Yayz Done! (kind Of)

ok well you get it


GearsOfWarFan (author)2009-12-14

what are those grey bits on the heat shield?

are you used to seeing the yellow half circle connectors?

combatknex (author)GearsOfWarFan2009-12-14

half circle connectors? which grey bits?

cool knex13 (author)2012-02-23

Nice gun!

But why is it on office supply's menu! :P

combatknex (author)cool knex132012-02-23

office supplys menu? whats that?

NJL4JC (author)2010-12-04

I was wondering, do you need to have the ball connectors for the mag.

gtrain (author)2009-12-09

no offense, but the stock is too big and the body is too small (in height) and the handle looks ordinary.

combatknex (author)gtrain2009-12-10

lollollollol!!! gettin revenge knowin my guns better wanna challenge????? me vs you, we both make a weapon of choice deal???? start building your gun tommorow. it has to be an assault rifle. range above 20ft. removable clip. dunkis will be our judge. your gun needs to be finished in exactly 1 week from tommorow. answer yes or no if youll accept. and btw this isnt an enemie battle. just havin fun c who will win. i still like all your guns and your xm8 but mostly your vector pwns.

gtrain (author)combatknex2009-12-10

i wont be able to because im workin on a gun. and its used up most my pieces, pretty much all my green rods. i am definitely not gonna break it because its just to good. here is proof. its about 3ft long, but will be longer once i add the stock

alfpwns (author)gtrain2010-07-22


combatknex (author)gtrain2009-12-12

done with my assault rifle even though ur not doin it.

gtrain (author)combatknex2009-12-12

i've always wanted to make that gun, but never got around to it. i have to say that it looks really cool! are u gonna post? U BETTER!!! wats its range?

combatknex (author)gtrain2010-04-25

hey suppper late response. nahh not gunna post. range is 25ft shooting straight 42ft at a 45 degree angle. the foregrip folds. the mag has a mag relase button. its got the whole nine yards. btw shoots either blue or connector based ammo

ol987986 (author)2010-02-16

does the mag work?

heat-seeker (author)2009-08-08

haha lol "THIS GUN WAS MEANT FOR EXPERIENCED KNEXPERTS IT MAY BE VERY DIFFICULT FOR NON KNEXPERTS." is that a excuse for a quick and easy (for you) instructable.

advinator (author)heat-seeker2009-12-01
-this is kind of off subject- you like red alert games by command and conquer? (question to heat-seeker)
chopstx (author)heat-seeker2009-09-14

Yes, yes it is.

layzzzzz (author)2009-10-28

your gun works great for me and the instructable was was easy to fallow next time you should add a red dot sight and grenade launcher.

combatknex (author)layzzzzz2009-11-30

i have a pistol grip,red dot,acog, silencer, and grenade launcher already built lol.

quitdrooling (author)2009-09-20

what rods do A use to put that grey pies on on the barrel

combatknex (author)quitdrooling2009-09-24

grey rods

lugnut1996 (author)2009-07-19

im a knexpert ive done this since ive had knex (since 4)

osi (author)lugnut19962009-09-07

same here, except you werent building guns then were you?

d4rksaber (author)2009-07-31

ohmygad! its a ibil dog!!!!!!! aaaaaah!!!! (kiding)

lugnut1996 (author)2009-07-19

how many half circle conecters do i need

alfpwns (author)lugnut19962009-07-24

over 54 for the hand grip

combatknex (author)lugnut19962009-07-22

idk not to many

thebookworm127 (author)2009-05-31

where is the best sniper directions???

ILIKEPIE333 (author)2009-05-08

built it smaller than I thought it would be

ILIKEPIE333 (author)ILIKEPIE3332009-05-08

I love it! I ran out of pieces so I didnt build the stock, but it looks awesome

combatknex (author)ILIKEPIE3332009-05-17

probably because you dont have the stock genouse lol

ILIKEPIE333 (author)combatknex2009-05-18

actually, I built the stock (turns out I had enough pieces) and the size is actually perfect I modded it so, even though now it is a muzzle loader, it goes 50+ feet with one rubber band and can cut through paper like butter (as you can expect the mag is now fake)

combatknex (author)ILIKEPIE3332009-05-18

nice,can you show me a video or picture.Some kind of visual.

ILIKEPIE333 (author)combatknex2009-05-30

took it apart, but it looked the same as the original anyway, just a grey rod in the grip and a grey one-hole connector barrel
I built a new one, a "sawed-off shotgun I call it, but not really (its just short)
has the same-even more range,
also a barrel loader, one shot,
and modelled after ajleece's KAR 98k

ILIKEPIE333 (author)combatknex2009-05-19

it looks pretty much the same, but I'll try to get a couple of pics

Miles Tails Prower (author)2009-05-21

This is outstanding man. I tried to make one myself, but it's not really that different from this one...

wooow ziet er vet cool uit man!

ehh well on your gun the rail is messed up the sock is way messed up and out of proportion you need a bette vlip and handle you grip is to small and the barrell is too fat but its cool. is it sngle shot?

erikos kostarikos (author)2009-05-25

maybe do something about the end barrel and the stock?
the end barrle is too low and the stock has cube shapes.
4.5* its awesome to me.

alfpwns (author)2009-05-20

how doesthe trigger work

alfpwns (author)2009-05-20

too hard, notes in way

alfpwns (author)alfpwns2009-05-20

nvm got it

wats-a-username (author)2009-05-07

i cant figure this part out lol JK i love this gun 4.5* until u can get the curved mag to not jam

randomstake17 (author)2009-04-15

plz put some more pictures on the Instructable

jabbathegut1 (author)2009-04-07

i havent built this yet , as i have been trying to build a gun with the shell ejector mech - you know a blue rod with 3 spacers taped together on the outside ? anyways , is it worth abandoning my project and building this? does anyone know any facts about this gun , max distance ect ?

alfpwns (author)2008-12-22

lol cute dog

combatknex (author)alfpwns2008-12-28


happybirthday (author)combatknex2009-03-07

Oh, and 5vd and faved

happybirthday (author)combatknex2009-03-06

Roxy? Looks like that? My friend has that kind of looking dog named Roxy!

ericm247 (author)2009-02-06

Can you please put some more pictures or like just add some detail.please!

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