Introduction: M90A Shotgun

Picture of M90A Shotgun

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!

Step 1: Parts List

Picture of 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

Picture of Handle

This is the part where you hold the gun.

Step 3: Trigger Mech

Picture of 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

Picture of The Under-Barrel

This is the part underneath the barrel.

Step 5: Under-Barrel Cont.

Picture of Under-Barrel Cont.

Not all the pics could fit in one step.

Step 6: Stock

Picture of 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.

Picture of 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.

Picture of Barrel Cont.

barrel cont.

Step 9: Put It All Together

Picture of Put It All Together

This is where everything fits into place.

Step 10: Rubberband Placement

Picture of 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!

Picture of Thanks!

Thanks alot everybody and i hope you enjoy my gun!


joeyay (author)2010-07-23

copy of logic boys fssg

TigerNod (author)2010-03-07

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?

erikos kostarikos (author)2010-01-11

Well, this thing takes too many time to reload it, but it looks kinda good.

barrax (author)2009-02-12

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.

sniper crazy (author)barrax2009-09-19

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

barrax (author)sniper crazy2009-09-20

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

An Villain (author)2009-07-29


DrWeird117 (author)2009-02-02

You did NOT just make no pump for this.

escuse me?

No pump? : (

oh sorry.

Don't worry.

SeMi_AuToMaTic (author)2009-01-03

~Update~ Now with mag! Uses ironman69's mag style without the bendy rod action. should i post?

where does the break action come in when you use the mag?

it doesn't. no more breakaction w/ the mag.

jollex (author)SeMi_AuToMaTic2009-01-05

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

SeMi_AuToMaTic (author)jollex2009-01-06


amtdude (author)SeMi_AuToMaTic2009-01-03

ya post the mag to! 5*

SeMi_AuToMaTic (author)amtdude2009-01-04


no easy load slot and you don't have to use the chopped rods

yes you do, if you are using v1, b/c of the convertion in the barrel, the ram could get stuck. it is break action. now without the mag, that is right you do not need a chopped rod and it is easy to load.

builder968 (author)2009-01-16

lol "ball connector"


Skreetsha (author)2009-01-05

Pretty sweet, dude! Keep this up!

SeMi_AuToMaTic (author)Skreetsha2009-01-06


knexguy (author)2009-01-03

I wouldn't say it uses many pieces really. Looks good.

SeMi_AuToMaTic (author)knexguy2009-01-03

Thanks! See the stock...

knexguy (author)SeMi_AuToMaTic2009-01-04

Yep, looks better with it.

SeMi_AuToMaTic (author)knexguy2009-01-04

no, i mean thank you, but i was saying there are alot of peices in the stock.

knexguy (author)SeMi_AuToMaTic2009-01-05

Oh, ok. If I build I would use it as a sawn-off so I'm not worried with the stock.

SeMi_AuToMaTic (author)knexguy2009-01-06


pls (author)2009-01-02

Looks neat, nice instructable, the handle could use some work though.

SeMi_AuToMaTic (author)pls2009-01-03

Thanks. Yeah i was at kind of a loss with the handle... did u rate?

pls (author)SeMi_AuToMaTic2009-01-03

4* More if you change the handle:)

SeMi_AuToMaTic (author)pls2009-01-04

okay i'll try :p

pls (author)SeMi_AuToMaTic2009-01-04


DJ Radio (author)2009-01-03

looks nothing like the shotgun from Halo 3. but a good shotgun nonetheless. 4.5*

SeMi_AuToMaTic (author)DJ Radio2009-01-03

i think it does... a little.:] but, thanks!

About This Instructable




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