Picture of M4A1 Sopmod

Well, here it is. It operates on a simple rubber band loaded firing pin design, which transfers energy to the ammo after being released by the pivoting trigger mechanism. Shoots grey connecters with green rods, removable mag, pin guide, has a charging handle, and is almost completely 1:1 scale.
Have fun.


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Step 1: Stock

Read the image notes. They contain the instructions.

Step 2: Reciever

Read the image notes. They contain the instructions. The first two pictures are two views of the same thing.

Step 3: Rail system and fake barrel

Read the image notes. They contain the instructions.

Step 4: Magazine

Picture of Magazine
These are detachable, internally pushed, and roofed. Read the image notes. They contain the instructions. Make as many as you can. load with One slot grey connectors with a green rod in the slot.

Step 5: Assembly.

Picture of Assembly.
Read the image notes. They contain the instructions.

Step 6: Done/Gallery

Picture of Done/Gallery
Here's your cookie. Use the band on the trigger guard to band the mag release if you haven't already done so. Band the Pin however you want. With 1 string of 2 #64s, I got a nice 30 feet. Have fun! If you make this, I will post your pic on this step. if you have a nice attachment you want in the 'ible, I'll make a step for it.
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are the m4s real
knexboy5862 years ago
i have the same cookie in one of my ibles
CuddlesMcT2 years ago
anyone having a problem where it shoots one bullet and ejects another at the same time?
CuddlesMcT2 years ago
The magazine pissed me off so much, but i finally finished it haha. This gun shoots great! 5 stars.
(removed by author or community request)
Why did you reply to me?
lol. What did the comment say?
I can't remember.
ok, cool.. maybe it was an annoying little kid
ooocol223 years ago
Does it use many red connectors
AUG-5OM33 years ago
How much snowflakes/blue 3d's does this gun need?
Als ik goed heb geteld: 26 witte en 12 blauwe verbindingselementen.
Dankje ik zat rond hetzelfde getal ;P
Geen probleem :)
MegaMetal83 years ago

You coming back now?
rec0n (author)  MegaMetal83 years ago
Thanks! Idk, k'nex kinda bores me. nothing new worth making I guess.
Same, I come on like every 2 weeks and its just becoming less and less.
The mech seems to be problematic, it wont cock properly.
rec0n (author)  beanieostrich3 years ago
Try using a different rubber band/banding method on the blocker. Or, try modifying the blocker.
Thank you, that helped =) My version shot about 46 ft on average with 4 # 64s on it. But sadly I destroyed it; although i have kept your amazing trigger guard and pistol grip for my new Compact Shotgun aka BCS2.
rec0n (author)  beanieostrich3 years ago
Np. It's good to know that this can get decent range for a repeater. Thanks for trying it out!
Your welcome.
knex mad3 years ago
=O "claps in Amazement" this is very good looking, sleek , tidy im going to build after ive got my enrty sorted for the jamalams competition still just =O
rec0n (author)  knex mad3 years ago
~KGB~3 years ago
Heres the magazine:
rec0n (author)  ~KGB~3 years ago
~KGB~ rec0n3 years ago
Thanks =D just need to make the stock and sopmod =D
Seleziona3 years ago
I like this type of ammo very much. May consider building. Nice job!
rec0n (author)  Seleziona3 years ago
Nice airsoft collection.
rec0n (author)  The Chunky Sniper!3 years ago
Thanks! Those pics are from a while back, My collection has grown quite alot since then.
Oblivitus3 years ago
As I said before, great job on making an accurate model.
rec0n (author)  Oblivitus3 years ago
Oblivitus rec0n3 years ago
You're welcome. :)
~KGB~3 years ago
Nice one =D
rec0n (author)  ~KGB~3 years ago
Thanks! Are you interested in helping make a SOPMOD kit?
~KGB~ rec0n3 years ago
Sure thing, when the gun is done ill do an ACOG, RDS/holosight, silencer possibly, and maybe a HBS.
rec0n (author)  ~KGB~3 years ago
Alright, cool.
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