Knex M4 Sopmod





Introduction: Knex M4 Sopmod

hey everybody, this is a knex sopmod that i made. i decided to make it after i made the knex m4 s system. i moded this gun and then added some parts to it like a grendae launcher, a pin guide, a ammo holder in the stock, and exchanged the mag for a more practical one for usage. i modded it so that the body is shorter and the pin can hit the bullet fully and not get jammed. then i extented the stock.

credits: they go to knex gun builder for the gun and knexrock44 for the instructions for the gun.

p.s please exuse my lack of use of image note, they dont seem to be able to save on my computer :(
update: i am now able to save image notes again :)



  • Minecraft Challenge 2018

    Minecraft Challenge 2018
  • Design For Kids Challenge

    Design For Kids Challenge
  • Remote Control Contest 2017

    Remote Control Contest 2017

We have a be nice policy.
Please be positive and constructive.


Questions & Answers


your welcome, wouldnt post it without doing so

I like the looks of it.

Doesn't look like it and the SOPMOD is pointless on a knex gun.

thats why its a replication, duh, and also it does because i took a m4 and added a grenade launcher to it which is WHAT IT IS, here are all the things that could possibly be on or not on an m4 sopmod. (if thats not true show me a picture of a "real" m4 sopmod)

Quite good, except for the grenade launcher being too far up. 4.5*

yeah, unfortunately i needed room for the ram, so it wasnt possible


nice job man =D