M90A Shotgun

About: Yo. I Live in Northern Virginia and I am totally into music. It is a force that has enveloped my taste and threw my live around. Its all I do now. I must warn you: It is a disease. The best kind of disease! ...

This is the M90A shotgun from Halo 3. Have so much fun with my shotgun.

--Sorry everybody i have been saying that i would post all this stuff and i never did. i have recently gotten a new media station on my computer so i can post instructables now.-- Hope you enjoy my shotgun. Thanks N-Striker

Pros. :)
-uses 2 different barrel designs
-uses rare sear trigger
-uses 2 different body structure types
-break action
-can shoot a wide range of ammo

Cons. :(
-alot of peices used
-can malfunction when loading (rare)
-hard to cock back

P.S. Happy New Year!

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Step 1: Parts List

Alright here is the parts list:

-yellow= 107
-white "snoflake"= 15
-blue= 12
-red= 20
-green= 5
-orange= 62
-special rollercoaster green 3 slot= 4
-dark gray= 6

-blue= 47
-white= 58
-red= 8
-small green= 152
-gray (sharpened)= 1
-yellow= 2

-3 rod panel= 4
-blue spacers= 38
-elbow connectors= 2
-Y clips= 17
-blue clips= 2
-tan clips= 1
-ball connector (ball + socket) = 1

Step 2: Handle

This is the part where you hold the gun.

Step 3: Trigger Mech

This is the sear trigger system. Instead of your ususal block triggers and true triggers, this is a change. (Nothing against them, of course :))

Step 4: The Under-Barrel

This is the part underneath the barrel.

Step 5: Under-Barrel Cont.

Not all the pics could fit in one step.

Step 6: Stock

This most likely the hardest/most complicated part. There is alot of connecting to do. But, it's really sturdy and comfortable, at the same time!

Step 7: Barrell + Last Pic From the Stock.

The barrel and the last pic from the stock. This might be the easiest step. (PHEW!).

Step 8: Barrel Cont.

barrel cont.

Step 9: Put It All Together

This is where everything fits into place.

Step 10: Rubberband Placement

This is where you put the rubber bands.

Step 11: How to Load.

Okay this step will tell you how to load the gun.

from a bb

to a grey rod!

In the video i sot three green rods.

Step 12: Thanks!

Thanks alot everybody and i hope you enjoy my gun!

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    38 Discussions


    9 years ago on Introduction

    Good gun, but not a good replica. Look at the stock, trigger guard, magazine and barrel, and compare it to the real one. Doesn't it feel like there is something missing?


    10 years ago on Introduction

    looks ok, it does remind me of a halo shotgun, but not terribly so. 4.5* you could have made a pump, shorter stock, trigger gaurd and some fake barrels. but those are only small things apart from the pump.

    2 replies
    sniper crazybarrax

    Reply 10 years ago on Introduction

    first of all u should of made it pump and it has a horrible trigger and loading mec but it does look like a halo 3 gun overall

    barraxsniper crazy

    Reply 9 years ago on Introduction

    next time click add comment, not reply, cause i got this as a comment for my comment...


    Reply 10 years ago on Introduction

    If you want to use a mag like that but with no chopped rods you can use the one from my SCAST.