Introduction: XM8 / FN SCAR Knex Gun

Picture of XM8 / FN SCAR Knex Gun

This is a gun that i have been recently been working on, I tryed making a XM8, and a FN SCAR crossbreed...It uses Mepains Riffle Butt and handle. It has a true trigger. The mag is removeable, and works by sliding the front part of the mag between the two bars, then the back of it just clips above the end of the bar.

I will not be making a instructable for this gun do to the camera i have to use, but if you can make it from the pictures and want to make a instructable of this, leave a Comment on my page, or just PM me to get permission.

If you have any improvment to this gun(it lacks a very strong frame)Then i will be glad to see/hear it

But remember this is has a mag, some shots will be short, some will be long, some might even jam. This gun is not done, and would help its finishing if everyone gave me their feedback.


Dumchicken (author)2011-04-06

plz make pllllllllllllllllllllllllllllllllleeeeeeeeeeeeeeeeeeeeeeeeaaaaaaaaaaaaaasssssssse

krazyfool (author)2010-01-28

 Ive modified this gun which i recommend doing. It allows for more power and accuray from the gun. Ive also added shell's and ejection from the gun.

Ive modified the ram and its slide by adding a yellow connector instead of a red and attaching a yellow rod slotted through another yellow connector which is attached to the ram rails. THhis allows for A LOT for power into the gun.

I also brought the front reciever backward to allow the ram more length to hit the bullet with.

I fixed the need to hit the mag by  changing the design of the mag well and receiver.

Also extended the barrel and made smaller mags. (Yerjoking mentioned it after i made it but he will agree its a worth while change. It looks awesome.

Still thanks for designing it, it kicks ass. 

P.S. i recommend altering the trigger to be a true trigger. It faster, easier and GREATLY reduces the bulk taken up by the trigger housing giving the gun more of a m14/21 look.

1 word build yay

yerjoking (author)2008-06-24

just built it yesterday! LOVE IT! I've made a few minor changes, smaller magazine (holds 8 blues) and a small barrel exstension (added 2 more barrels and a half) a different bullet pusher, a different sight, a scope/carrying handle(not very accurate(my scope that is)) and an extra magazine in the stock, also holds 8 blues =]

thomaswatton (author)yerjoking2009-06-01

will u be posting it (PLZ SAY YES LOL)

yerjoking (author)thomaswatton2009-06-03


charlie farthing (author)2009-02-21

nise mag you should put a crank on it that will make it farst erfire

661rhys (author)2008-06-16

Hi i was wondering weather any one could help me. im looking at making a belt fed fully automatic machingun based on a GPMG or also known as gimpy. Im having some problems with the belt feed and firing mechanism and im needing some devine inspiration to try and solve this problem. Any ideas will help a huge amount!! Many thanks 661rhys

builder968 (author)661rhys2008-09-06

my only suggestions are these: use multiple gears to feed it or it will just let go of the belt make each bullet have its own firing pin in its own barrel

hippos are dangerous (author)2008-03-31

does this use mepain's trigger system?

guns4life (author)2008-02-02

u should make a instructable on this I would like to know how u made it.

Alingarhs (author)guns4life2008-02-02

Bruce made is an instructable Look at his page. He has commented a few people down

X_D_3_M_1 (author)2008-01-21

dont look very much like an xm8

smidge147 (author)2007-09-29

this is a picture of the front part of the most important mechanisms i hope this help nd if you need more pics just ask

Flie-Ing GOOse (author)smidge1472007-11-01

if u get the full gun made can u post plz m8

bruce911 (author)Flie-Ing GOOse2007-12-20

I posted it here The Scar

phlorgan (author)smidge1472007-11-11

can u put a pic of the ram plz.

Alingarhs (author)smidge1472007-09-29

Did you build the who gun, or just the front?

smidge147 (author)Alingarhs2007-09-29

just the front for now i like to get the mechanism right before adding more stuff.

Kaiven (author)smidge1472007-10-07

could you put a picture(s) of the barrel? i can't really see it because of the other pieces in the way

Kaiven (author)smidge1472007-10-07


Drewzer667 (author)2007-11-12

I commented on this a little while ago, but ypu said more pics were coming!
i was pateint and if im not mistaken, thats like a month ago! please get on it asap, because it looks so cool and i want to see the range! its still pwnage though=)

Alingarhs (author)Drewzer6672007-11-12

Someone is doing an instructable on this soon

Drewzer667 (author)Alingarhs2007-11-14

Sweet! who?

bruce911 (author)Drewzer6672007-12-20

Me here they are The Scar

Drewzer667 (author)2007-10-01

post it it looks so awsome! just wondering- how many rounds does it hold in the mag? thx.

Alingarhs (author)Drewzer6672007-10-01

I think the max it will hold is 9 rounds

Drewzer667 (author)Alingarhs2007-10-06

sweet. so are you going to post? i hope so. btw, 9 is awsome good for a knex war.:-)

bruce911 (author)Drewzer6672007-12-20

The Scar I made instructions

Alingarhs (author)Drewzer6672007-10-06

not sure, been kinda busy i dont even have an hour of spare time

EricGrace (author)Alingarhs2007-11-12

so if i build it can i post it please my in box is empty thank you halo3 :}

Drewzer667 (author)Alingarhs2007-10-07

Oh ok. But could you put some more pics of different angles so i can try building?

Alingarhs (author)Drewzer6672007-10-07

Sure, ill try getting them on tonight

Drewzer667 (author)Alingarhs2007-10-07

K thx

Alingarhs (author)Drewzer6672007-10-08

Here is a picture of just the barrel alone

phlorgan (author)Alingarhs2007-11-11

this pic was verehj helpful thanx =]. any plans to finish it????????????

Drewzer667 (author)Alingarhs2007-10-09

Yay ty

ultimachris (author)Alingarhs2007-11-21

it'l hold more, all you have to do is make magazine bigger

EricGrace (author)Alingarhs2007-11-09

i made the mag barrel now the middle and back .:}

ry guy (author)2007-12-07

can you please post the instructions for this gun.

bruce911 (author)ry guy2007-12-20

The Scar I made instructions

knex maddo (author)2007-12-02

please post instructions. please please please

bruce911 (author)knex maddo2007-12-20

The Scar I made instructions

ironman69 (author)2007-12-09

The mag thing is pretty innovative!

knex maddo (author)2007-12-02

looks cool

bruce911 (author)2007-11-24

InstructableMine is done and the magazine holds 16 shots.

s0lekill3r (author)bruce9112007-11-25

Hey I just noticed that you linked to step #11 on your instructable for this gun.

bruce911 (author)s0lekill3r2007-11-25


s0lekill3r (author)bruce9112007-11-25

Ya, Just thought I'd let you know.

ShotPain (author)2007-11-12

YAY Finally a KNEX FN SCAR!! But teh only problem is i cant build it :( please hurry up...

About This Instructable




More by Alingarhs:XM8 / FN SCAR Knex Gun
Add instructable to: